24 Top Hss Cobalt Drill Bits for 2020

 

Fewear Ship from USA8PCS Cobalt HSS Drill Bit KitLarge Size 916 to 1for Drilling Cast Iron Brass Aluminium Stainless Steel and Other Hard Materials A #ad

Fewear Ship from USA,8PCS Cobalt HSS Drill Bit Kit,Large Size 9/16″ to 1″,for Drilling Cast Iron, Brass, Aluminium, Stainless Steel and Other Hard Materials (A)

Fewear Ship from USA,8PCS Cobalt HSS Drill Bit Kit,Large Size 9/16″ to 1″,for Drilling Cast Iron, Brass, Aluminium, Stainless Steel and Other Hard Materials (A) #ad - ❤1,this product is shipped by our us local warehouse, quality assurance, logistics 7 to 9 days, your first choice you do not worry the products demaged. ❤3,1/2″ shank diameter,tri-flat shank for sure grip,contents 9/16″, 5/8″, 11/16″, 3/4″, 13/16″, 7/8″, 15/16″, 1″. ❤2,black and gold surface treatment holds lubricant for smoother drilling135 degree & split point for faster penetration and accurate starting. ❤4,comes with aluminum carry case for easy storage. Hss cobalt drill bits hss cobalt step drill bit set hss cobalt drill hss drill bit set hss drill bit hss drill set hss drill bit 7/16 hss drill bits for steel hss drill 1/2 hss drill bit 5/8.

 

Sipery 10Pcs M35 Cobalt HSS Twist Drill Bits 3mm with Straight Shank Drilling for Stainless Steel Copper Aluminum Alloy and Softer Materials #ad

Sipery 10Pcs M35 Cobalt HSS Twist Drill Bits 3mm with Straight Shank, Drilling for Stainless Steel, Copper, Aluminum Alloy and Softer Materials

Sipery 10Pcs M35 Cobalt HSS Twist Drill Bits 3mm with Straight Shank, Drilling for Stainless Steel, Copper, Aluminum Alloy and Softer Materials #ad - Durable, hss cobalt drill bit provide strong durable performance compared to typical hss drill bits. Material, hss cobalt high speed steel for super abrasive resistance in tough metals, improve much higher heat resistance because of cobalt steel’s high red hardness. Specification, 10pcs 3mm cobalt drill bits, each kit contains a total of ten drill bits in the same size, blade length 33mm/13inch, 118 degree point, straight shank. Multi-purpose use, hss drill bits are successful in cutting hard metals such as stainless steel, copper, aluminum alloy, and also can be used for softer materials. Easy to carry, the twist drill bits are housed in plastic case for easy storage, easy to carry out homework.

 

Helen-Box - 15PCS 11-22mm Split Point HSS Cobalt Metric Twist Drill Bit Drilling Tool for Electrical Tool Key-less Drill Chucks #ad

Helen-Box – 15PCS 1.1-2.2mm Split Point HSS Cobalt Metric Twist Drill Bit Drilling Tool for Electrical Tool, Key-less Drill Chucks

Helen-Box – 15PCS 1.1-2.2mm Split Point HSS Cobalt Metric Twist Drill Bit Drilling Tool for Electrical Tool, Key-less Drill Chucks #ad - 90% conventional orders will be delivered within 15-25 days. Repair and replacement accessories, household tools include electrical equipment & supplies, alligator clips, switch, screwdriver, garden tools, brush, milling cutter, sewing, hardware, conector, electric solenoid, motor accessories. Please note that the products are only offered by helen-box brand other sales people is not reliable. 100% brand new and high quality. Excellent quality, fast delivery, simple after-sales we make every effort to provide customers with satisfactory service.

 

DRILLFORCE 5PCS 38 Inch HSS General Purpose Heavy Duty Jobber Cobalt Twist Drill Bitsideal for drilling on mild steel copper Aluminum Zinc alloy etc #ad

DRILLFORCE 5PCS 3/8″ Inch HSS General Purpose Heavy Duty Jobber Cobalt Twist Drill Bits,ideal for drilling on mild steel, copper, Aluminum, Zinc alloy etc.

DRILLFORCE 5PCS 3/8″ Inch HSS General Purpose Heavy Duty Jobber Cobalt Twist Drill Bits,ideal for drilling on mild steel, copper, Aluminum, Zinc alloy etc. #ad - Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. Drillforce 5pcs 3/8″ inch hss jobber cobalt twist drill bits,ideal for drilling on mild steel, copper, aluminum, zinc alloy etc. 135-degree split-point tip starts drilling immediately with less force and eliminates “walking” across the work surface. High quality material- high speed steel cobalt -m 35 cobalt steel best material. High efficiency in drilling metals, and stainless steel.

 

DRILLFORCE 5PCS 2564 Inch HSS General Purpose Heavy Duty Jobber Cobalt Twist Drill Bitsideal for drilling on mild steel copper Aluminum Zinc alloy etc #ad

DRILLFORCE 5PCS 25/64″ Inch HSS General Purpose Heavy Duty Jobber Cobalt Twist Drill Bits,ideal for drilling on mild steel, copper, Aluminum, Zinc alloy etc.

DRILLFORCE 5PCS 25/64″ Inch HSS General Purpose Heavy Duty Jobber Cobalt Twist Drill Bits,ideal for drilling on mild steel, copper, Aluminum, Zinc alloy etc. #ad - 135-degree split-point tip starts drilling immediately with less force and eliminates “walking” across the work surface. Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. Drillforce 5pcs 25/64″ inch hss jobber cobalt twist drill bits,ideal for drilling on mild steel, copper, aluminum, zinc alloy etc. High efficiency in drilling metals, and stainless steel. High quality material- high speed steel cobalt -m 35 cobalt steel best material.

 

5 Pcs Pack 2964 Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg Split Point Drilling Steel Meteal Iron #ad

5 Pcs Pack 29/64″ Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg. Split Point Drilling Steel, Meteal, Iron.

5 Pcs Pack 29/64″ Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg. Split Point Drilling Steel, Meteal, Iron. #ad - ●m35 cobalt high speed steel for drilling steel, stainless steel, hard metal and iron. ●Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. ●5pcs packed in a plastic bag for easy usage and store. ●135-degree split-point tip starts drilling immediately with less force and eliminates “walking” across the work surface. ● Diameter 29/64″ flute length 4-3/16″ overall length 5-5/8″ hss e hss co cobalt drill bits.

 

ttnight Drill Bit Titanium-Plated HSS Cobalt Drill Bit Woodworking Fixed-Point Tool - M5 #ad

ttnight Drill Bit, Titanium-Plated HSS Cobalt Drill Bit Woodworking Fixed-Point Tool – M5

ttnight Drill Bit, Titanium-Plated HSS Cobalt Drill Bit Woodworking Fixed-Point Tool – M5 #ad - Instructions for use it needs to be corrected before exceeding 001mm. Accurate positioning, wear-resistant and durable. Instructions for use it can never be used for drilling. Instructions for use it is necessary to test tool deviation before using. Instructions for use it can only be used for fixing point, chamfering.

 

DRILLFORCE 5PCS 3164 Inch HSS General Purpose Heavy Duty Jobber Cobalt Twist Drill Bitsideal for drilling on mild steel copper Aluminum Zinc alloy etc #ad

DRILLFORCE 5PCS 31/64″ Inch HSS General Purpose Heavy Duty Jobber Cobalt Twist Drill Bits,ideal for drilling on mild steel, copper, Aluminum, Zinc alloy etc.

DRILLFORCE 5PCS 31/64″ Inch HSS General Purpose Heavy Duty Jobber Cobalt Twist Drill Bits,ideal for drilling on mild steel, copper, Aluminum, Zinc alloy etc. #ad - Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. Drillforce 5pcs 31/64″ inch hss jobber cobalt twist drill bits,ideal for drilling on mild steel, copper, aluminum, zinc alloy etc. High quality material- high speed steel cobalt -m 35 cobalt steel best material. 135-degree split-point tip starts drilling immediately with less force and eliminates “walking” across the work surface. High efficiency in drilling metals, and stainless steel.

 

DRILLFORCE 5PCS 716 Inch HSS Jobber Cobalt Twist Drill Bitsideal for drilling on mild steel copper Aluminum Zinc alloy etc #ad

DRILLFORCE 5PCS 7/16″ Inch HSS Jobber Cobalt Twist Drill Bits,ideal for drilling on mild steel, copper, Aluminum, Zinc alloy etc.

DRILLFORCE 5PCS 7/16″ Inch HSS Jobber Cobalt Twist Drill Bits,ideal for drilling on mild steel, copper, Aluminum, Zinc alloy etc. #ad - Package & size 5 pieces drill bits in a plastic bag, diameter 7/16 inch, total length 5-1/2 inch, working length 4-1/16 inch. Professional & diy use for use on metal, wood & plastics, stainless steel, not for use on concrete / masonry perfect match for workshop or service vehicles. Cobalt drill bits classic 5% cobalt m35 high speed steel construction with titanium coating for proven capability and durability. Hardness 5% cobalt drill bits’ rock wall hardness level hrc 65-66. 135 tip & twist design increases cutting speed with self-centering and prevents walking, clears chips and particles faster.

 

IRWIN 10502563 HSS Cobalt Drill Bit Din 388 90-Millimetre x 125-Millimetre #ad

IRWIN 10502563 HSS Cobalt Drill Bit (Din 388, 9.0-Millimetre x 125-Millimetre)

IRWIN 10502563 HSS Cobalt Drill Bit (Din 388, 9.0-Millimetre x 125-Millimetre) #ad - Industrial quality ground flute for high accuracy drilling and fast removal of chips. Golden tempered surface resists rust and corrosion. Cobalt alloyed drill bit body provides increased heat resistance and a significantly extended service life. A 135-degree split point grinding ensures perfect centring and reduced drilling pressure. This cobalt drill bit features a working length of 81 millimetres.

 

M35 HSS Cobalt Drill Bit 15mm Diameter Twist Drill bits Split Point for Drilling Metal Steel Aluminum 10Pcs #ad

M35 HSS Cobalt Drill Bit, 1.5mm Diameter Twist Drill bits, Split Point for Drilling Metal Steel Aluminum 10Pcs

M35 HSS Cobalt Drill Bit, 1.5mm Diameter Twist Drill bits, Split Point for Drilling Metal Steel Aluminum 10Pcs #ad - Made of m35 steel, includes 5% cobalt, high hardness, stable performance. 135-degree split-point tip starts drilling immediately with less force and eliminates. Ideal for drilling on stainless steel, cast iron, sheet metal, steel plate, angle iron. It is widely used in the drilling of stainless steel plate, automobile spring steel and die steel. With high surface finish, high grinding precision , the blade is sharp and durable in use.

 

Drill Bit Titanium-plated HSS Cobalt Drill Bit Woodworking Fixed-point Tool M5 #ad

Drill Bit Titanium-plated HSS Cobalt Drill Bit Woodworking Fixed-point Tool (M5)

Drill Bit Titanium-plated HSS Cobalt Drill Bit Woodworking Fixed-point Tool (M5) #ad - Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. It needs to be corrected before exceeding 0. Please allow slight measuring deviation due to manual measurement. Instructions for use it can only be used for fixing point, chamfering. It is necessary to test tool deviation before using. Package included1 xdrill bit. 01mm. Specifications material high speed steel containing cobalt sizem559. 665mm notes 1. Thank you 2. It can never be used for drilling. Accurate positioning, wear-resistant and durable.

 

DRILLFORCE 5PCS 516 Inch HSS General Purpose Heavy Duty Jobber Length Cobalt Twist Drill Bitsideal for drilling on mild steel copper Aluminum Zinc alloy etc #ad

DRILLFORCE 5PCS 5/16″ Inch HSS General Purpose Heavy Duty Jobber Length Cobalt Twist Drill Bits,ideal for drilling on mild steel, copper, Aluminum, Zinc alloy etc.

DRILLFORCE 5PCS 5/16″ Inch HSS General Purpose Heavy Duty Jobber Length Cobalt Twist Drill Bits,ideal for drilling on mild steel, copper, Aluminum, Zinc alloy etc. #ad - 135-degree split-point tip starts drilling immediately with less force and eliminates “walking” across the work surface. High efficiency in drilling metals, and stainless steel. Drillforce 5pcs,5/16″ inch hss jobber cobalt twist drill bits,ideal for drilling on mild steel, copper, aluminum, zinc alloy etc. Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. High quality material- high speed steel cobalt -m 35 cobalt steel best material.

 

10 Pcs Pack 764 Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg Split Point Drilling Steel Meteal Iron #ad

10 Pcs Pack 7/64″ Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg. Split Point Drilling Steel, Meteal, Iron.

10 Pcs Pack 7/64″ Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg. Split Point Drilling Steel, Meteal, Iron. #ad - ●M35 cobalt high speed steel for drilling steel, stainless steel, hard metal and iron. ●10pcs packed in a plastic bag for easy usage and store. ●135-degree split-point tip starts drilling immediately with less force and eliminates “walking” across the work surface. ● diameter 7/64″ flute length 1-1/2″ overall length 2-5/8″ hss e hss co cobalt drill bits. ●Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel.

 

DRILLFORCE 10PCS1964 Inch HSS General Purpose Heavy Duty Jobber Length Cobalt Twist Drill Bitsideal for drilling on mild steel copper Aluminum Zinc alloy etc #ad

DRILLFORCE 10PCS,19/64″ Inch HSS General Purpose Heavy Duty Jobber Length Cobalt Twist Drill Bits,ideal for drilling on mild steel, copper, Aluminum, Zinc alloy etc.

DRILLFORCE 10PCS,19/64″ Inch HSS General Purpose Heavy Duty Jobber Length Cobalt Twist Drill Bits,ideal for drilling on mild steel, copper, Aluminum, Zinc alloy etc. #ad - High quality material- high speed steel cobalt -m 35 cobalt steel best material. Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. 135-degree split-point tip starts drilling immediately with less force and eliminates “walking” across the work surface. Drillforce 10pcs,19/64″ inch hss jobber cobalt twist drill bits,ideal for drilling on mild steel, copper, aluminum, zinc alloy etc. High efficiency in drilling metals, and stainless steel.

 

10 Pcs Pack 1364 Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg Split Point Drilling Steel Meteal Iron #ad

10 Pcs Pack 13/64″ Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg. Split Point Drilling Steel, Meteal, Iron.

10 Pcs Pack 13/64″ Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg. Split Point Drilling Steel, Meteal, Iron. #ad - ●packed in a plastic bag with lables on bag. ●M35 cobalt high speed steel for drilling steel, stainless steel, hard metal and iron. ●Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. ● Diameter 13/64″ flute length 2-7/16″ overall length 3-5/8″ hss e hss co cobalt drill bits. ●135-degree split-point tip starts drilling immediately with less force and eliminates “walking” across the work surface.

 

Irwin Hss Cobalt Drillbits  Pack 10 10Mm #ad

Irwin Hss Cobalt Drillbits ( Pack 10) 1.0Mm

Irwin Hss Cobalt Drillbits ( Pack 10) 1.0Mm #ad - The irw10502511 hss cobalt drillbits are supplied in a pack of 10. 0mm. Total length 34mm. Hss cobalt drill bits (10) 1. The irwin metric hss cobalt drill bits are perfect for drilling stainless steel and other high alloy steels. The 135° split point begins drilling immediately, minimising bit walk and they are manufactured to din 338 standards. Specificationsdiameter 1. 0mm ol34mm wl12mm. Working length 12mm. They have 5% cobalt for higher heat and abrasion resistance and a heavy-duty web construction for strength and durability.

 

10 Pcs Pack 116 HSS Cobalt Jobber Length Twist Drill Bits Metal Drill Bit 135 Deg Split Point Drilling Steel Meteal Iron #ad

10 Pcs Pack 1/16″ HSS Cobalt Jobber Length Twist Drill Bits Metal Drill Bit 135 Deg. Split Point Drilling Steel, Meteal, Iron.

10 Pcs Pack 1/16″ HSS Cobalt Jobber Length Twist Drill Bits Metal Drill Bit 135 Deg. Split Point Drilling Steel, Meteal, Iron. #ad - ●10pcs packed in a plastic bag for easy usage and store. ●Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. ●135-degree split-point tip starts drilling immediately with less force and eliminates “walking” across the work surface. ●M35 cobalt high speed steel for drilling steel, stainless steel, hard metal and iron. ● Diameter 1/16″ flute length 7/8″ overall length 1-7/8″ hss e hss co cobalt drill bits.

 

10 Pcs Pack 18 Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg Split Point Drilling Steel Meteal Iron #ad

10 Pcs Pack 1/8″ Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg. Split Point Drilling Steel, Meteal, Iron.

10 Pcs Pack 1/8″ Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg. Split Point Drilling Steel, Meteal, Iron. #ad - ● Diameter 1/8″ flute length 1-5/8″ overall length 2-3/4″ hss e hss co cobalt drill bits. ●10pcs packed in a plastic bag for easy usage and store. ●Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. ●m35 cobalt high speed steel for drilling steel, stainless steel, hard metal and iron. ●135-degree split-point tip starts drilling immediately with less force and eliminates “walking” across the work surface.

 

10 Pcs Pack 1564 Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg Split Point Drilling Steel Meteal Iron #ad

10 Pcs Pack 15/64″ Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg. Split Point Drilling Steel, Meteal, Iron.

10 Pcs Pack 15/64″ Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg. Split Point Drilling Steel, Meteal, Iron. #ad - ●135-degree split-point tip starts drilling immediately with less force and eliminates “walking” across the work surface. ● Diameter 15/64″ flute length 2-5/8″ overall length 3-7/8″ hss e hss co cobalt drill bits. ●ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. ●M35 cobalt high speed steel for drilling steel, stainless steel, hard metal and iron. ●Packed in a plastic bag with lables on bag.

 

10 Pcs Pack 564 Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg Split Point Drilling Steel Meteal Iron #ad

10 Pcs Pack 5/64″ Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg. Split Point Drilling Steel, Meteal, Iron.

10 Pcs Pack 5/64″ Inch M35 HSS Cobalt Drill Bit Jobber Length Drill Bits Twist Drill Bits 135 Deg. Split Point Drilling Steel, Meteal, Iron. #ad - 10pcs packed in a plastic bag for easy usage and store. 135-degree split-point tip starts drilling immediately with less force and eliminates “walking” across the work surface. Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. 5/64 inch hss cobalt co5% fully ground jobber length twist drills general purpose. M35 cobalt high speed steel for drilling steel, stainless steel, hard metal and iron.

 

ArtisanShow 8PCS 3-10mm HSS Cobalt Drill Bits Split Point Twist Drill Bit Jobber Length Straight Shank for Thin Iron Sheet Wet Wood Rubber Plastic Stainless Steel Metal Copper Cast Iron Aluminum #ad

ArtisanShow 8PCS 3-10mm HSS Cobalt Drill Bits Split Point Twist Drill Bit Jobber Length Straight Shank for Thin Iron Sheet Wet Wood Rubber Plastic Stainless Steel Metal Copper Cast Iron Aluminum

ArtisanShow 8PCS 3-10mm HSS Cobalt Drill Bits Split Point Twist Drill Bit Jobber Length Straight Shank for Thin Iron Sheet Wet Wood Rubber Plastic Stainless Steel Metal Copper Cast Iron Aluminum #ad - ✅[Specifications] the center is a 1 inch round hole, universal fit for 99% straight shaft puncher a universal and practical replacement accessory, fits for thin iron sheet wet wood rubber plastic stainless steel metal copper cast iron aluminum. ✅[Quality] 100% brand new and high quality all our products are extensively tested to comply with rigorous and strict qc standards we offer a 60-day refund guarantee. ✅[Wide application] withstands high-temperature applications for extended periods of time (up to 1,100 degreef) suitable for thin iron sheet, wet wood, rubber, plastic and other viscous objects. ✅[Parameters] the set includes 8pcs of diameter 3-10mm grade cobalt steel twist drill bits, packed in a storage box as showed in the picture. ✅[material] cobalt steel, manufactured from m35 grade cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times when compared with an average hss drill bit.

 

NO-LOGO HENTONGWANDA HSS Cobalt Drills CNC Spiral Drill Drill Bit for Stainless Steel Size 10mm #ad

NO-LOGO HENTONGWANDA HSS Cobalt Drills CNC Spiral Drill Drill Bit for Stainless Steel Size: 10mm

NO-LOGO HENTONGWANDA HSS Cobalt Drills CNC Spiral Drill Drill Bit for Stainless Steel Size: 10mm #ad - Using m35 containing cobalt high speed steel milling,vacuum heat treatment. The measurement allowed error is +/- 1-3 cm. The head is special grinding blade,high hardness,when drilling the workpiece material,it has excellent processing performance. Drill and baking processing,has a higher wear resistance and low friction coefficient. M35 containing cobalt high speed steel can enhance the heat resistance and prolong life,add core thick structure can provide outside of bit products cutting force,is the first choice for processing of stainless steel thin plate drilling. The 135° double apex angle give full play to the self-centering performance,without pre-existing sockets,finish your work more quickly and accurately. Can be use such as hand electric drill,bench drill or radial drill,special durable. Diameter 10mmmaterial m35 containing cobalt high speed steelcolor yellowpackage includes 1 x hss cobalt drill bitnotelight shooting and different displays may cause the color of the item in the picture a little different from the real thing.

 

Twist Drill Bit Set 10 pcs Micro HSS Cobalt Drill Bit Set for Hard Metal Stainless Steel Cast Iron 25 mm #ad

Twist Drill Bit Set (10 pcs), Micro HSS Cobalt Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron, 2.5 mm

Twist Drill Bit Set (10 pcs), Micro HSS Cobalt Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron, 2.5 mm #ad - Material hss-4341diameter size 25mm. Small bottle packingsuitable for a small object processing. Notice not for high carbon steel and heat-treated steel pay attention to speed, pressure and heat control during drilling. Fully ground process split point no center punch is needed fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance straight shank design is more suitable for many electric drills the sharp and twisted flute will make the drilling be more easy and effortless. Multiple application hss is perfectly suitable for hard metals, such as stainless steel and cast iron it can be used for wood, aluminum alloy and other softer metals not for glass or ceramic materials.





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