lifehackchallenge 
Best results for drill bit for hardened stainless steel
amoolo Twist Drill Bit Set (13 pcs), M35 Cobalt Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron, 1/16"-1/4"
$13.89
$15.56
Amazon.com
Last update was on: May 19, 2024 3:20 am
- 【M35 Cobalt Drill Bit】This drill bit contains 5% Cobalt (M35 Cobalt HSS), which increases the strength, the tool life and makes it more heat-resistant. Rockwell Hardness >
- = 67.
- 【Fully Ground Process & 135° 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. 135° split point with straight shank prevents walking and makes drilling precise and faster.
Migiwata 1/4 Inch Fractional Size M35 Cobalt Steel Twist Drill Bit Set of 10pcs – Jobber Length and Straight Shank – Extremely Heat Resistant – Suitable for Drilling in Stainless Steel and Iron
$18.99
$25.45
Amazon.com
Last update was on: May 19, 2024 3:20 am
- 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.
- For Stainless Steel - Particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate.
Bosch CO14B 14 Pc. Cobalt M42 Drill Bit Set
$32.98
$46.50
Amazon.com
Last update was on: May 19, 2024 3:20 am
- Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum
- Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits
- High-heat resistant bits – withstand high-temperature applications for extended periods of time
DEWALT Cobalt Drill Bit Set with Pilot Point, 14-Piece (DWA1240)
1/8-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 12
$15.05
$17.31
Amazon.com
Last update was on: May 19, 2024 3:20 am
- JOBBER LENGTH: 1/8-Inch cutting diameter, 1-5/8-Inch flute length, 2-3/4-Inch overall length, 135 degree split point, straight shank
- MADE FROM HIGH-SPEED STEEL AND 5% COBALT: improve much higher heat resistance because of cobalt steel's high red hardness, provide strong durable performance compared to typical hss drill bits
- CAN BE REPEATEDLY SHARPENED AS NEEDED: cobalt drill bit's hardness is uniform throughout the entire material, so that can be repeatedly sharpened without damaging the cutting edge allowing it to drill more than hss drill bits
COMOWARE Cobalt Drill Bit Set- 13Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Metal Indexed Storage Case, 1/16"-1/4"
$13.99
$16.93
Amazon.com
Last update was on: May 19, 2024 3:20 am
- 13 PIECES INCLUDED: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4".
- HSS WITH 5% COBALT: Durable, Higher Heat & Abrasion Resistance.
- PRECISE 135°SPLIT POINT & TWIST DESIGN: Prevent walking, clear chips and particles faster.
- PROFESSIONAL & WIDELY USE: M35 Cobalt HSS is more suitable for hardened material. Particularly successful in cutting through hard metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods, and also can be used for softer materials.
Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits with Straight Shank Set of 13pcs to Cut Through Hard Metals Such as Stainless Steel and Cast Iron
$14.89
$18.91
Amazon.com
Last update was on: May 19, 2024 3:20 am
- COBALT STEEL - Manufactured from M35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, extremely heat resistant
- for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.
- NO CENTER PUNCH NEEDED - The 135° Quick-Cut points are self-centering and penetrate quickly with less pressure. Will not "walk" or "wander". Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks. Must be used and operated at proper RPMs for maximum efficiency
Drill America 29 Piece Heavy Duty High Speed Steel Drill Bit Set with Black and Gold Finish in Round Case (1/16" – 1/2" x 64ths), KFD Series
$49.99
$65.99
Amazon.com
Last update was on: May 19, 2024 3:20 am
- Assortment of 29 jobber length drill bits includes inch sizes 1/16" to 1/2" in 1/64" increments
- High-speed steel (HSS) provides hardness for wear resistance
- Black and gold oxide finish resists corrosion and increases the hardness of the drill bit
- Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging
- Comes in a plastic storage case
Best Choice 8-Piece 1/2” Shank Silver and Deming Drill Bit Set in Aluminum Carry Case, High Speed Steel (HSS) | SAE Size 9/16” – 1” by 1/16th Increment
$27.99
$34.99
Amazon.com
Last update was on: May 19, 2024 3:20 am
- Premium cobalt high speed steel construction for proven capability and durability to drill holes in wood, plastic, aluminum, copper, stainless, sheet metals and many other types of materials
- Superior gold titanium and black nitride dual coating finish holds up lubricant better for smoother drilling, and is 80% more durable and corrosion resistant than regular black enamel finish
- 135° Split point design at tip increases cutting speed with self-centering feature and prevents drill walking or wobbling
set of 3 HSS6542 M2 Steel Spiral Groove Step Drill Bit Set for Stainless Steel Metal Wood Hole
$26.31
$38.94
Amazon.com
Last update was on: May 19, 2024 3:20 am
- Suit for use in hardness under 28 artifacts,(Such as: Stainless steel , iron plate, aluminum, wood )
- You can use water to cooling it when it is work and it can be used for even longer
- Meet Your Demands - With the step drill bits we offered, you can process different kinds of diameter holes, which greatly saves you a lot of trouble.Great for metal wood plastic countersunk. Suitable for Home DIY, and General Building Engineering Use.
Drill Hog USA 13 Pc COBALT Drill Bit Set Index M42 Drill Bits
Bosch CO2139 3/16 In. x 3-1/2 In. Cobalt Drill Bit
$4.22
$6.20
Amazon.com
Last update was on: May 19, 2024 3:20 am
- Withstands high-temperature applications for extended periods of time (up to 1,100 degreeF)
- Rigid, thick web design adds stability to bit in tough applications
- Surface hardened to penetrate tough abrasive materials
- Available in jobber length, full shank
- Best used for drilling into light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, stainless steel and titanium
21 Pc Cobalt M42 Drill Bit Set 1/16" to 1/2" by 32nds DRILL HOG USA
Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)
$34.89
$42.91
Amazon.com
Last update was on: May 19, 2024 3:20 am
- Premium M42 8% Cobalt Steel ,68-70 HRC (Rockwell Hardness Scale) ,Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life.
- 3 Steps Desigh for Cutting through Stainless Steel,Hard Metals,Aluminum,Plastic.
- This Cobalt Drill Bit is Typically Capable of Running Three to Five Times Faster.Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes.
Bosch CO2143 1/4 In. x 4 In. Cobalt Drill Bit
$3.52
$4.05
Amazon.com
Last update was on: May 19, 2024 3:20 am
- Withstands high-temperature applications for extended periods of time (up to 1,100 degreeF)
- Rigid, thick web design adds stability to bit in tough applications
- Surface hardened to penetrate tough abrasive materials
- Available in jobber length, full shank
- Best used for drilling into light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, stainless steel and titanium
1/4" M35 Cobalt HSS Jobber Length Twist Drill Bit with Straight Shank,Heavy Duty, Pack of 10 PCS, Drilling for Cast Iron, Heat-treated Steel, Stainless Steel and Other Hard Materials
$19.99
$22.99
Amazon.com
Last update was on: May 19, 2024 3:20 am
- Product Information: 10 drill bits: Each kit contains a total of ten drill bits in the same size
- Accurate and Neat: 135°Quick-Cut points are self-centering and penetrate quickly with less pressure. Will not "walk" or "wander"
- Excellent Performance: Bits are extremely heat resistant. Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks
