Top 18 Best Forstner Drill Bit Sets in 2020

 

Forstner Drill Bit Sets16 Pcs Tungsten High Speed Steel Wood Working Hole Cutter Titanium Coated Wood Boring Hole Drilling Sets with Round Shank 1932-1-3815mm-35mm by TLHOME

Forstner Drill Bit Sets,16 Pcs Tungsten High Speed Steel Wood Working Hole Cutter Titanium Coated Wood Boring Hole Drilling Sets with Round Shank 19/32″-1-3/8″(15mm-35mm) by TLHOME

Forstner Drill Bit Sets,16 Pcs Tungsten High Speed Steel Wood Working Hole Cutter Titanium Coated Wood Boring Hole Drilling Sets with Round Shank 19/32″-1-3/8″(15mm-35mm) by TLHOME - 【Various sizes】 15mm(19/32″), 16mm(5/8″), 17mm(43/64″), 18mm(45/64″), 19mm(3/4″), 20mm(25/32″), 21mm(53/64″), 22mm(55/64″), 23mm(29/32″), 24mm(15/16″), 25mm(1″), 26mm(1-1/16″), 28mm(1-1/8″), 30mm(1-3/16″), 32mm(1-1/4″), 35mm(1-3/8″), which can meet your various needs in this professional set,drill clean flat bottom holes with no chipping,perfect to enlarge existing holes and bore any arc you need. 【Application】:suitable for pistol drill, bench drill, vertical drilling machine hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine,etc. 【powerful function】professional, sharp and durableimprove 50% times than other drillsprocessing capacity can increase by more than 70% smooth machined parts and without burr. 【Top quality】made from tungsten steel and being hot-treated,sharp edge,high hardness, accurate positioning,high precision,smooth cutting,impact resistance,high toughnessmore smooth,less noise. 【Widely used】can be used in wood drilling, installation of a spherical door slightly、 the drawer slightly、plastic products and gypsum board safer and more accurate to use this drill bit in a drill press.

 

Forstner Drill Bits 15-35mm 5 Pcs Set Carbide Forstner Bits High Speed Steel Flat Wing Drilling Hole Hinge Cemented Carbide Drilling Sets with Round Shank Counterbore DC02B for Wood Plastic Plywood

Forstner Drill Bits 15-35mm 5 Pcs Set, Carbide Forstner Bits High Speed Steel Flat Wing Drilling Hole Hinge Cemented Carbide Drilling Sets with Round Shank Counterbore DC02B for Wood Plastic Plywood

Forstner Drill Bits 15-35mm 5 Pcs Set, Carbide Forstner Bits High Speed Steel Flat Wing Drilling Hole Hinge Cemented Carbide Drilling Sets with Round Shank Counterbore DC02B for Wood Plastic Plywood - [More size] 15mm,20mm,25mm, 30mm, 35mm (5/8-inch, 3/4-inch, 7/8-inch, 1-inch, 1-1/8-inch, 1-3/8-inch) a variety of sizes to provide a choice. [unique design] blade arc design, cut resistance is small, improve the drill hole speed, chip removal easy, hole neat, smooth, no broken edge, will not produce tremor phenomenon. [Applicable tools] perfect used for mounting spherical door shoot tip, drawer perforation on wood products , plastic products, wood and plywood etc. [Application] the forstner drill bit set suitable for industrial hinge installation, wood processing and maintenance, model making, installation of spherical door handle, drawer handle and other occasions. [Wood drill bit set]high-speed steel woodworking hole saw open hole neat, smooth, no tremor can sharp cutting edge improves opening speed, easy chip removal also for longer life.

 

7Pcs Professional Forstner Drill Bit Set Woodworking Hole Saw Wood Cutter

7Pcs Professional Forstner Drill Bit Set Woodworking Hole Saw Wood Cutter

7Pcs Professional Forstner Drill Bit Set Woodworking Hole Saw Wood Cutter - More size 7 different boring diameters 1/4-inch, 3/8-inch, 1/2-inch, 5/8-inch,3/4-inch, 7/8-inch, 1-inch a variety of sizes to provide a choice. Excellent workmanship selection of high quality alloy blade, hardened and tempered, carbon hss steel construction make blade more sharp and durable it’s head adopt arc curve design, beneficial to chip removal, perforation is more efficient. Suitable for pistol drill, bench drill, vertical drilling machine hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine, etc. Widely used can be used for wood products perforation, mounted spherical door shoot tip, drawer, plastic products, wood, plywood, etc. Top quality sharp edge, high hardness, accurate positioning, high precision, smooth cutting, impact resistance, high toughness more smooth, less noise.

 

10Pcs 15mm-50mm Forstner Drill Bit Sets Tungsten Steel Woodworking Hole Saw Cutter Set Forstner Auger Drill Bits Wooden Hole Opener Boring Bits DIY Wood Work Cutting Drilling Power Tools

10Pcs 15mm-50mm Forstner Drill Bit Sets, Tungsten Steel Woodworking Hole Saw Cutter Set Forstner Auger Drill Bits Wooden Hole Opener Boring Bits DIY Wood Work Cutting Drilling Power Tools

10Pcs 15mm-50mm Forstner Drill Bit Sets, Tungsten Steel Woodworking Hole Saw Cutter Set Forstner Auger Drill Bits Wooden Hole Opener Boring Bits DIY Wood Work Cutting Drilling Power Tools - Precision ground for heavy use and easily resharpened, they can enlarge existing holes with ease and can bore any arc of a circle. 10pcs/set include 10 different boring diameters 15mm/16mm/18mm/20mm/22mm/25mm/30mm/32mm/35mm/50mm. Individual titanium coated forstner bits for use on wood, for drilling holes in any direction and making arched openings. 2 spurs, 2 precision ground cutting edges, long-lasting cutting performance, drill precise flat bottom holes with no chipping in any thickness of soft wood, for drilling holes in any direction and making arched openings. Made from tungsten steel and being hot-treated, the blade is characterized by high accuracy, smooth cutting operation, good resistance to shock and good toughness.

 

QLOUNI 5Packs Forstner Drill Bits Sets15-35mm high Carbon Steel Long Round Shank Hinge Hole Cutter Drill Bit Set for Wood Plastic Plywood

QLOUNI 5Packs Forstner Drill Bits Sets/15-35mm high Carbon Steel Long Round Shank Hinge Hole Cutter Drill Bit Set for Wood Plastic Plywood

QLOUNI 5Packs Forstner Drill Bits Sets/15-35mm high Carbon Steel Long Round Shank Hinge Hole Cutter Drill Bit Set for Wood Plastic Plywood - [Applicable tools] easy to install, easy to use, suitable for chuck greater than or equal to 10mm electric drill, bench drill, high power electric grinding, pneumatic drilling, magnet drill, pistol drill. [Application] the forstner drill bit set suitable for industrial hinge installation, wood processing and maintenance, model making, installation of spherical door handle, drawer handle and other occasions. [Material] the broca bisagra made of high carbon steel, special heat treatment technology, sharp knife edge, high hardness, durable, size 15/20/25/30 / 35mm. [Wood drill bit set] perfectly drill the fine holes you need in a variety of wood, wood products, plastic, plywood and other materials. [unique design] blade arc design, cut resistance is small, improve the drill hole speed, chip removal easy, hole neat, smooth, no broken edge, will not produce tremor phenomenon.

 

WElinks 16Pcs Forstner Drill Bits Set Individual Titanium Coated Alloy Steel Wood Boring Hole Saw Set Woodworking Forstner Drill Bits Cutter 15mm-35mm

WElinks 16Pcs Forstner Drill Bits Set Individual Titanium Coated Alloy Steel Wood Boring Hole Saw Set Woodworking Forstner Drill Bits Cutter 15mm-35mm

WElinks 16Pcs Forstner Drill Bits Set Individual Titanium Coated Alloy Steel Wood Boring Hole Saw Set Woodworking Forstner Drill Bits Cutter 15mm-35mm - Made from tungsten steel and being hot-treated, the blade is characterized by high accuracy, smooth cutting operation, good resistance to shock and good toughness. Precision ground for heavy use and easily resharpened, they can enlarge existing holes with ease and can bore any arc of a circle. 16pcs/set include 16 different boring diameters 15mm/16mm/17mm/18mm/19mm/20mm/21mm/22mm/23mm/24mm/25mm/26mm/28mm/30mm/32mm/35mm. Individual titanium coated forstner bits for use on wood, for drilling holes in any direction and making arched openings. 2 spurs, 2 precision ground cutting edges, long-lasting cutting performance, drill precise flat bottom holes with no chipping in any thickness of soft wood, for drilling holes in any direction and making arched openings.

 

LDEXIN 17mm  067 Forstner Drill Bits Set Individual Titanium Coated Cutter Woodworking Boring Hole Saw Drilling Wood Plastic Plywood 17mm  067

LDEXIN 17mm / 0.67″ Forstner Drill Bits Set Individual Titanium Coated Cutter Woodworking Boring Hole Saw Drilling Wood Plastic Plywood (17mm / 0.67″)

LDEXIN 17mm / 0.67″ Forstner Drill Bits Set Individual Titanium Coated Cutter Woodworking Boring Hole Saw Drilling Wood Plastic Plywood (17mm / 0.67″) - ✨【cutting perfect circles】these woodwork forstner bit set is ideal for drilling decorative holes for fine woodwork and hinge boring, creates a fine smooth finish, cut perfect circles with these tools. ✨【Wide application】used for wood, particle board, top drawer, plywood, etc applicable to the pistol drill, bench drill, vertical drilling machine etc. ✨【Tungsten steel material withstand high temperatures】made from tungsten steel and being hot-treated, the blade is characterized by high accuracy, smooth cutting operation, good resistance to shock and good toughness. ✨【Precision hole bit 】2 spurs, 2 precision ground cutting edges, long-lasting cutting performance, drill precise flat bottom holes , for drilling holes in any direction and making arched openings. ✨【Excellent workmanship】precision ground for heavy use and easily resharpened, they can enlarge existing holes with ease and can bore any arc of a circle.

 

QLOUNI 5Packs Forstner Drill Bits Sets15-35mm high Carbon Steel Long Round Shank Hinge Hole Cutter Drill Bit Set for Wood Plastic Plywood Renewed

QLOUNI 5Packs Forstner Drill Bits Sets/15-35mm high Carbon Steel Long Round Shank Hinge Hole Cutter Drill Bit Set for Wood Plastic Plywood (Renewed)

QLOUNI 5Packs Forstner Drill Bits Sets/15-35mm high Carbon Steel Long Round Shank Hinge Hole Cutter Drill Bit Set for Wood Plastic Plywood (Renewed) - [Application] the forstner drill bit set suitable for industrial hinge installation, wood processing and maintenance, model making, installation of spherical door handle, drawer handle and other occasions. [Material] the broca bisagra made of high carbon steel, special heat treatment technology, sharp knife edge, high hardness, durable, size 15/20/25/30 / 35mm. [Unique design] blade arc design, cut resistance is small, improve the drill hole speed, chip removal easy, hole neat, smooth, no broken edge, will not produce tremor phenomenon. [wood drill bit set] perfectly drill the fine holes you need in a variety of wood, wood products, plastic, plywood and other materials. [Applicable tools] easy to install, easy to use, suitable for chuck greater than or equal to 10mm electric drill, bench drill, high power electric grinding, pneumatic drilling, magnet drill, pistol drill.

 

Meich Forstner Drill Bit Set 15-35mm 16 Pcs Carbide Forstner Bits High Speed Steel Wood Tool Punching Bit Wood Slabs Flat Wing Drilling Hole Hinge Cemented Carbide Drilling Counterbore DC01

Meich Forstner Drill Bit Set 15-35mm 16 Pcs, Carbide Forstner Bits High Speed Steel Wood Tool Punching Bit Wood Slabs Flat Wing Drilling Hole Hinge Cemented Carbide Drilling Counterbore DC01

Meich Forstner Drill Bit Set 15-35mm 16 Pcs, Carbide Forstner Bits High Speed Steel Wood Tool Punching Bit Wood Slabs Flat Wing Drilling Hole Hinge Cemented Carbide Drilling Counterbore DC01 - Advanced technology manufacturing and durable material, made from tungsten steel and being hot-treated, the blade is characterized by high accuracy, smooth cutting operation, good resistance to shock and good toughness. Designed for durability and long life, creates a fine smooth finish. High quality, small incision resistance, improve the opening speed, chip easy and no tremor the perforation is neat, smooth, no broken edge. 16pcs include 16 different boring diameters 15mm/16mm/17mm/18mm/19mm/20mm/21mm/22mm/23mm/24mm/25mm/26mm/28mm/30mm/32mm/35mm. Wide range of applications, any wood and wood products, plastic, plywood and other materials you need to exquisite perforation, suitable for industrial hinge installation, wood processing and maintenance, model production, installation of spherical door, drawers and other occasions.

 

Forstner Drill Bit Ankoow 6Pcs 16mm-35mm Carbon High Speed Steel Woodworking Hole Saw Set Auger Opener Drilling Wood Plastic Plywood with Round Shank

Forstner Drill Bit, Ankoow 6Pcs 16mm-35mm Carbon High Speed Steel Woodworking Hole Saw Set Auger Opener Drilling Wood Plastic Plywood with Round Shank

Forstner Drill Bit, Ankoow 6Pcs 16mm-35mm Carbon High Speed Steel Woodworking Hole Saw Set Auger Opener Drilling Wood Plastic Plywood with Round Shank - ❤widely used can be used for wood products perforation, mounted spherical door shoot tip, drawer, plastic products, wood, plywood, etc. ❤Excellent workmanship selection of high quality alloy blade, hardened and tempered, carbon hss steel construction make blade more sharp and durable it’s head adopt arc curve design, beneficial to chip removal, perforation is more efficient. ❤Top quality sharp edge, high hardness, accurate positioning, high precision, smooth cutting, impact resistance, high toughness more smooth, less noise. ❤Suitable for pistol drill, bench drill, vertical drilling machine hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine, etc. ❤More size 16mm, 20mm, 22mm, 25mm, 30mm, 35mm (5/8-inch, 3/4-inch, 7/8-inch, 1-inch, 1-1/8-inch, 1-3/8-inch) a variety of sizes to provide a choice.

 

kwb 706090 Forstner Drill Bit Set 5-Piece for Wood 15 20 25 30 and 35 mm with Twisted Shaft

kwb 706090 Forstner Drill Bit Set 5-Piece for Wood 15, 20, 25, 30 and 35 mm with Twisted Shaft

kwb 706090 Forstner Drill Bit Set 5-Piece for Wood 15, 20, 25, 30 and 35 mm with Twisted Shaft - The twisted shank allows for use in all standard drills and cordless screwdrivers with 10 mm or 13 mm chuck (kwb art no 706090). Can be used in hard wood and soft wood, as well as various panel materials such as osb panels, veneered woods and carpentry boards. Forstner drill bits for medium and large bores between 15 and 35 mm for simple craft work. The art drill bits feature a 4-sided ground centre point and pre-cut all around for accurate drilling and tear-free drilling. The set contains 1 drill bit in the sizes 15 mm, 20 mm, 25 mm, 30 mm and 35 mm (eg for pot hinges/as a hinge hole drill).

 

Pulusi Forstner Drill Bits Set Individual Titanium Coated Forstner Bits Mandrels Saws 10mm - 50mm 13 Pack

Pulusi Forstner Drill Bits Set Individual Titanium Coated Forstner Bits Mandrels Saws 10mm – 50mm 13 Pack

Pulusi Forstner Drill Bits Set Individual Titanium Coated Forstner Bits Mandrels Saws 10mm – 50mm 13 Pack - Adptation, suitable for drill press, pistol drill, bench drill, vertical drilling machine, hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine etc. Longer service life, carbide tip is specially designed to through hole cleanly in end grain and thin stock,which make blade more sharp and durable. More sizes, 2/5″ (10mm), 3/5″ (15mm), 18/25″ (18mm), 4/5″ (20mm), 7/8″ (22mm), 1″ (25mm), 1-3/25″ (28mm), 1-1/5″ (30mm), 1-1/4″ (32mm), 1-2/5″ (35mm), 1-3/5″ (40mm), 1-4/5″ (45mm), 2″ (50mm), drill depth 4 4/5″ (120mm). Cutter faster, small incision resistance, improve the opening speed, chip easy and no tremor the perforation is neat, smooth, no broken edge. Ideal choice, perfect used for mounting spherical door shoot tip, drawer perforation on wood products , plastic products, wood and plywood etc.

 

yehhad 7 pcs Woodworking Flat Wing Drill Set High Speed Steel Wood Cutting Tool Hole Hinge Cemented Forstner Drill Bit Set

yehhad 7 pcs Woodworking Flat Wing Drill Set, High Speed Steel Wood Cutting Tool Hole Hinge Cemented Forstner Drill Bit Set

yehhad 7 pcs Woodworking Flat Wing Drill Set, High Speed Steel Wood Cutting Tool Hole Hinge Cemented Forstner Drill Bit Set - Using advanced manufacturing technology, high-quality materials, durable. Hole neat, smooth, no shavings, will not produce tremor. Easy to install, easy to use, you only need to install the ordinary drill can be used. Can be used for a variety of wood, wood products, plastics, plywood and other materials of the hole. Small incision resistance, increased hole speed, chip evacuation easy.

 

Forstner Drill Bits Set 16PCS 15-35mm Carbon High Speed Steel Woodworking Hole Cutter Titanium Coated Wood Boring Hole Drilling Sets with Round Shank

Forstner Drill Bits Set, 16PCS 15-35mm Carbon High Speed Steel Woodworking Hole Cutter Titanium Coated Wood Boring Hole Drilling Sets with Round Shank

Forstner Drill Bits Set, 16PCS 15-35mm Carbon High Speed Steel Woodworking Hole Cutter Titanium Coated Wood Boring Hole Drilling Sets with Round Shank - &#X1f6e0️『perfect design』small incision resistance, improve the opening speed, chip easy and no tremor the perforation is neat, smooth, no broken edge. &#X1f6e0️『material』tungsten steel and individual titanium coated for extended service life rotating speed 800rpm. &#x1f6e0️『satisfaction guaranteed』if you have some need when using, please feel free to contact us firstly we strive to offer the 100% satisfaction for all our customers and will do whatever it takes to make you satisfied. &#X1f6e0️『application』suitable for drill press, pistol drill, bench drill, vertical drilling machine, hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine etcperfect used for mounting spherical door shoot tip, drawer perforation on wood products , plastic products, wood and plywood etc. &#X1f6e0️『size』15mm16mm17mm18mm19mm20mm21mm22mm23mm24mm25mm 26mm28mm30mm32mm35mm.

 

Sauton 16pcs Forstner Woodworking Drill Bit Set Boring Hole Saw Cutter Wood Tools

Sauton 16pcs Forstner Woodworking Drill Bit Set Boring Hole Saw Cutter Wood Tools

Sauton 16pcs Forstner Woodworking Drill Bit Set Boring Hole Saw Cutter Wood Tools - -Suitable to drill different sizes hole on wood products,thin plywood, composite board,etc. -Material made of tungsten steel with hot process, with the sharp knife edge, with high hardness,wear resistance,good toughness,heat and corrosion. -16 sizes 15mm(19/32″),16mm(5/8″),17mm(43/64″),18mm(45/64″),19mm(3/4″),20mm(25/32″),21mm (53/64″),22mm(55/64″),23mm(29/32″),24mm(15/16″),25mm(1″),26mm(1-1/16″),28mm(1-1/8″),30mm(1- 3/16″),32mm(1-1/4″),35mm(1-3/8″). -designed by cross shape two semi-circular arcs,there with sharp nail in the center and sharp blade designs,cut through hole cleanly, great for cutting curve edges or holes on woods.

 

Titanium Forstner Bits Set 16Pc - Wood Forstner Drill Bits - Wood Drilling Forstner Bits Set - Wood Boring Bits Auger Drill Bit - Woodworking Hole Saw Set - Forstner Bit Set - Forstner Drill Bit Set

Titanium Forstner Bits Set 16Pc – Wood Forstner Drill Bits – Wood Drilling Forstner Bits Set – Wood Boring Bits Auger Drill Bit – Woodworking Hole Saw Set – Forstner Bit Set – Forstner Drill Bit Set

Titanium Forstner Bits Set 16Pc – Wood Forstner Drill Bits – Wood Drilling Forstner Bits Set – Wood Boring Bits Auger Drill Bit – Woodworking Hole Saw Set – Forstner Bit Set – Forstner Drill Bit Set - ✅ Best value forstner drill bits set is a great value great for home or business woodworking. ✅ the sizes of the forstner drill bit set include the following measurements 1/4″, 3/8″, 1/2″, 5/8″, 3/4″, 7/8″, 1″, 1-1/8″, 1-1/4″, 1-3/8″, 1-1/2″, 1-5/8″, 1-3/4″, 1-7/8″, 2″, 2-1/8″ bits over 1″ have saw tooth design. ✅ General usage titanium forstner drill bits are excellent for doweling, creating pocket holes, countersinking screws, drilling out knots in wood and hardware installation. ✅ Durability each forstner bit made from hardened tool steel this woodworking forstner drill bit set is wear resistance and durable. ✅ Forstner drill bits for wood, 3/8″ reinforced shanks and precision ground heads wood hole drill bit is guided by own edge to bore straight, smooth holes in wood.

 

Woodworking Forstner Drill Bit Sets Knugoua Carbide Tungsten Steel Boring Bits Wood Hole Saw Kits Cutter Auger Opener Drilling Bit Tool Big Size 35~2-111 Inch Set of 14

Woodworking Forstner Drill Bit Sets, Knugoua Carbide Tungsten Steel Boring Bits Wood Hole Saw Kits Cutter Auger Opener Drilling Bit Tool Big Size 3/5~2-1/11 Inch Set of 14

Woodworking Forstner Drill Bit Sets, Knugoua Carbide Tungsten Steel Boring Bits Wood Hole Saw Kits Cutter Auger Opener Drilling Bit Tool Big Size 3/5~2-1/11 Inch Set of 14 - Widely apply occasion perfect used for drilling precision holes in all different types of wood, such as drawer, mounting spherical door shoot tip etc and suitable for drill press, pistol drill, bench drill, vertical drilling machine, hand held electric drill, stand motor-driven drilling machine etc. Highly working efficiency with highly hardness and excellent workmanship design, these forstner drill bits can be used for high speed rotary drilling, and the perforation is neat, smooth, no broken edge, also wood chips can be discharged quickly safety and labor saving. Material made of high quality carbide tungsten steel, with hot process, high hardness, high precision, high toughness, smooth cutting and high resistance to impact. Set of 14 size 3/5″(15mm), 2/3″(17mm), 5/7″(18mm), 11/14″(20mm), 13/15″(22mm), 17/18″(24mm), 63/64″(25mm), 1-1/16″(27mm), 1-1/10″(28mm), 1-2/11″(30mm), 1-6/23″(32mm), 1-1/2″ (38mm), 1-10/13″(45mm), 2-1/11″(53mm). Guarantee we promise provide satisfied service for every client, if there is any quality issue, we can send a new replacement or refund full refund.

 

Forstner Drill Bit Sets10 Pcs Tungsten High Speed Steel Wood Working Hole Cutter Titanium Coated Wood Boring Hole Drilling Sets with Round Shank 58-2-2515mm-60mm by TLHOME

Forstner Drill Bit Sets,10 Pcs Tungsten High Speed Steel Wood Working Hole Cutter Titanium Coated Wood Boring Hole Drilling Sets with Round Shank 5/8″-2-2/5″(15mm-60mm) by TLHOME

Forstner Drill Bit Sets,10 Pcs Tungsten High Speed Steel Wood Working Hole Cutter Titanium Coated Wood Boring Hole Drilling Sets with Round Shank 5/8″-2-2/5″(15mm-60mm) by TLHOME - 【Top quality】made from tungsten steel and being hot-treated,sharp edge,high hardness, accurate positioning,high precision,smooth cutting,impact resistance,high toughnessmore smooth,less noise. 【Widely used】can be used in wood drilling, installation of a spherical door slightly、 the drawer slightly、plastic products and gypsum board safer and more accurate to use this drill bit in a drill press. 【Application】:suitable for pistol drill, bench drill, vertical drilling machine hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine,etc. 【powerful function】professional, sharp and durableimprove 50% times than other drillsprocessing capacity can increase by more than 70% smooth machined parts and without burr. 【Various sizes】15mm(5/8″),20mm(3/4″),25mm(1″),30mm(1-1/5″),35mm(1-2/5″), 40mm(1-3/5″), 45mm(1-7/10″), 50mm(1-9/10″),55mm(2-1/5″), 60mm(2-2/5″) , which can meet your various needs in this professional set,drill clean flat bottom holes with no chipping,perfect to enlarge existing holes and bore any arc you need.





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