Thank you for your question. That's is material, made from high speed steel and 5% cobalt. The addition of cobalt improves strong durable performance in harder materials especially stainless steel. If you have further questions, please feel free to contact us.

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1/4-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 12

1/4-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 12

Product ID: 403389256

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Details

Material
Stainless
Cutting diameter
6.35
Finish type
Gold Oxide
Shank type
3-Flat
Cutting angle string
135 Degrees

🔄Sharpenable for extended lifespan

🔥5% cobalt for superior heat resistance

⚙️1/4-inch precision cutting diameter

Frequently Bought Together

1/4-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 12

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Description

🔥 Drill like a pro, last like a legend! ⚙️

135 SPLIT POINT - Self-centering tip reduces walking and ensures clean, accurate holes every time.
REUSABLE SHARPNESS - Uniform hardness allows repeated sharpening without losing cutting edge integrity.
COMPLETE 12 PIECE SET - Includes a durable case for organized storage and easy transport—always ready for the job.
PRECISION JOBBER LENGTH - Optimized 2-3/4-inch flute and 4-inch overall length for versatile metal drilling.
COBALT ENHANCED DURABILITY - 5% cobalt alloy boosts heat resistance and toughness for stainless steel and hard metals.

This 12-piece set of 1/4-inch cobalt M35 jobber length twist drill bits combines high-speed steel with 5% cobalt for exceptional heat resistance and durability. Featuring a 135° split point for precision and a uniform hardness that allows repeated sharpening, these bits excel at drilling hard metals including stainless steel. Packaged in a sturdy case, they are the ultimate upgrade for professionals demanding reliability and performance.

Specifications

Manufacturer	Drill Hulk Ltd
Part number	DHCO33
Item Weight	231 g
Package Dimensions	12.19 x 2.79 x 2.69 cm; 231 g
Item model number	DHCO33
Size	1/4 in
Colour	Brownish-gold
Style	Twist Drill
Finish	Gold Oxide
Material	Stainless Steel
Item Package Quantity	1
Tool tip description	135 Split Point
Measurement System	US
Accessory connection type	Keyed Chuck and Keyless Chuck
Specific uses	Metal Drilling
Batteries included?	No
Batteries Required?	No

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