ReviewsUnibit Cobalt Step Drill 10234cb

Matework M35 Cobalt Step Drill Bit Set Four Spiral Flute Step Bit 1/8 -7/8 Wear-Resistant TiAlN Coated 1/4 Hex Shank Unibit for Metal Wood Stainless Steel Plastic 3Pcs 20 Size

• ... are prone to deflection during cutting, but four Flute step drill are more stable in cutting. The service life is twice as long as that of ordinary step drills, the drilling accuracy is significantly improved, and the cutting speed is faster when drilling, which has a unique effect on stainless steel drilling..
• M35 COBALT HSS - M35 cobalt HSS can obtain high hardness (HRC 64-66), high red hardness and high wear resistance through proper heat treatment. Its toughness and bending strength are higher than ordinary high-speed steel, and it is better for hard materials..
• TiAlN COATING - As a new coating material in the past two years, TiAlN coating has excellent characteristics such as high hardness, high oxidation temperature, good thermal hardness, strong adhesion, small friction coefficient, and low thermal conductivity..
• 135°CUTTING ANGLE - The increased angle of the drill tip is more suitable for drilling hard materials than 118°. The larger the included angle, the smaller the self-wear and the larger the stress area..
• TIPS - Due to high-speed rotation, the temperature of the drill bit will continue to rise. It is recommended to add cutting oil or spray water to cool down when working continuously, which can effectively improve the service life of the....

STROTON 4-32mm Metric 6% Cobalt Step Drill Bit for Stainless Steel and Hard Metal 15 Steps

• Premium M35 6% Cobalt Steel ,66-69 HRC (Rockwell Hardness Scale) ,Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life..
• Grinding the Cutting Edge Three Times,with the High HRC and Heat Resistance of the Material,Desigh for Cutting through Stainless steel , Iron plate, Aluminum,Ducts,Wood,PVC and Plastic..
• This Cobalt Step Drill Bit is Typically Capable of Running Two to Three 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..
• [4-32mm] 15 Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm,32mm).

Milwaukee 48-89-2801 21-Piece Thunderbolt Black Oxide Drill Bit Set

• Extreme Durabikity: Cobalt high speed steel drill bits along with the titanium coating ensures extreme durability, will stay new and shiny for years to come..
• Different Sizes of Holes Can Be Drilled: Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes. You are capable to drill holes in different sizes which can meet your normal needs..
• Smooth Drilling: Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board must be smaller in thickness than the height of step drill bits)..
• Use Center Punch to Mark the Spot: Please mark the spot that you are to drill for easier drilling and improved drill bits life..
• Keep Your Step Drill Bits Well Organized: All the bits come in a well-organized case for easy transport and storage..

OXMUL Step Drill Bits for Metal, 1/8 to 1/2, Cobalt Bit, Heavy Duty for Stainless Steel,Metal, Aluminum, Wood, Copper, Wood, 13-Steps. #202

• 【Heavy Duty for Stainless Steel】 The Cobalt Drill Bits(1.3243 STEEL) can drill 6X longer life and 2X faster. This Drill bits is heavy duty for Stainless Steel, Metal, Galvanized Steel, Aluminum,Iron, Wood, PVC and Copper. If you want to drill faster and many holes on metal, please choose this step drill bit.
• 【Cobalt Bits】 Prefect for Stainless Steel/Metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets. This Drill bit can successfully drill more and more holes easily into Stainless Steel plate like knife through butter!.
• 【120-DAYS WARRANTY】 - If not satisfied, Any Reason, please contact us for 100% refund or replacement.
• 【13 Steps︱2-Spiral-Flute︱1/4" Shank】 13-STEPS: 1/8,5/32,3/16,7/32,1/4,9/32,5/16,11/32,3/8,13/32,7/16,15/32 to 1/2 inches. 2-Spiral Flute:Clears Chips faster.
• 【Cutting Fluid】 Cutting Fluid must be poured during work for longer life! Prohibit water-cooling to prevent!.

Drill Hog 37 Pc Cobalt Drill Bit Set Index M42 1/16" - 1"

STROTON Cobalt Drill Bit Set (1/16-1/4 Inch, 13PCS), M35 High Speed Steel Twist Drill Bits for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood

• 【Premium True 5% Cobalt Steel with 68 HRC】- The Marked Cobalt Content of Ordinary Drill Bits May be False, but This Drill Bits Set is Made of Cobalt Ore from Our Own Mine, Which Indeed Contains 5% Cobalt. Although the Cost and Price are Slightly Higher, It Usually is able to Provide 3X Heat,Wear and Chip Resistance and 3X Tool Life..
• 【Split Point Design and Fully Ground Process】- Compared with Other Ordinary Drill Bits, This Drill Bits Set is Particularly Suitable for Heavy Duty Work, Such as Cutting through Stainless Steel,Steel Plate,Iron Sheet, Cast Iron and Hardwood, and Drilling Out Bolts Studs and Screws..
• 【3X Efficiency + 3X Tool Life】- This Cobalt High Speed Steel Drill Bits Set is Typically Capable of Running 3 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..
• 【Sharp Drill Bit Edge】- This Kind of Drill Bits Beast Can Even Cut Hardened Metal into Long Iron Bars, While a Dull Drill Bit Can Just Slowly Wear Through Metal..
• 【13 Pieces Jobber Length Industrial Drill Bits Includes】: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 [DIA 1/64 Inch Increments].

Cobalt Drill Bit Set M35 High Speed Steel Twist Drill Bit Set for Hardened Metal Stainless Steel Cast Iron Woodwork Plastic (30 Pieces,1/8 Inch)

• Quality material: the cobalt drill bit set uses cobalt M35 high speed steel as material, this material is reliable and practical, with a long service use, heat and abrasion resistance.
• The cutting edge of drill bit is hardened and honed, with accurate cutting without shaking.
• Creative twist design: metal cobalt drills for hardened steel has 135 degrees split point tip and torsional design to improve cutting speed with self-centering ability.
• They can avoid walking during work process, while clearing chips and particles more quickly and easily.
• Nice features: the nice twist drill bits have precise diameter.
• M35 cobalt drill bits for hardened metal are not easy to break or wear out, so suitable for lithium electric drill, hand electric drill, impact electric drill, etc..
• The size is small, please pay attention to use.
• Various fitness: M35 high speed steel cobalt drill set is nicely suitable for hardened material and hard metals, such as cast iron, high temperature alloy, hard plastics, stainless steel, titanium alloy, woods, etc., also for soft materials.
• What you will get: the package contains many cobalt drill bits, sufficient quantity to meet your various needs.
• Please pay attention to speed, pressure and heat control during drilling.

Cobalt Drill Bit Set M35 High Speed Steel Twist Drill Bit Set for Hardened Metal Stainless Steel Cast Iron Woodwork Plastic (15 Pieces,1/16 Inch)

• Quality material: the cobalt drill bit set uses cobalt M35 high speed steel as material, this material is durable, strong and practical, with a long service life, heat and abrasion resistance.
• The cutting edge of drill bit is hardened and honed, with accurate cutting without shaking.
• Creative twist design: metal cobalt drills for hardened steel has 135° split point tip and torsional design to improve cutting speed with self-centering ability.
• They can avoid walking during work process, while clearing chips and particles more quickly and easily.
• Nice features: the 1/16 inch twist drill bits have precise diameter.
• M35 cobalt drill bits for hardened metal are not easy to break or wear out, so suitable for lithium electric drill, hand electric drill, impact electric drill, etc..
• The size is small, please pay attention to use.
• Various fitness: M35 high speed steel cobalt drill set is greatly suitable for hardened material and hard metals, such as cast iron, high temperature alloy, hard plastics, stainless steel, titanium alloy, woods, etc., also for soft materials.
• What you will get: the package contains 15 pieces 1/16 inch cobalt drill bits, sufficient quantity to meet your various needs.
• Please pay attention to speed, pressure and heat control during drill....

Drill Hulk 13-Piece M35 Cobalt Drill Bit Set for Hard Metal, Stainless Steel, 1/16-Inch to 1/4-Inch, Jobber Length, 3-Flat Shank

• JOBBER LENGTH: jobber length cobalt drill bit, 135 degree split point reduces drill walking, 3-flat shank provides a secrue grip in chucks.
• 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.
• APPLICATION: best used for drilling in hard metal, including stainless steel.
• INCLUDE: 13 pieces cobalt drill bits in inch sizes 1/16" to 1/4" (1/64" increments) with plastic case.

1/8 Inch Cobalt Drill Bits(10Pcs), HPHOPE M35 HSS Metal Twist Drill Bits Set, Jobber Drill Bits Length and Straight Shank, Suitable for Drilling in Hard Metal, Stainless Steel, Cast Iron

• 【M35 COBALT HIGH SPEED STEEL】1/8" drill bits for metal made from M35 Cobalt High Speed Steel and contain 5% Cobalt, which increases wear-resistance, durability and extra longer life span, so that the drill bits last through multiple uses.
• 【135° SPLIT POINT】135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. Straight shank of this cobalt steel drill bit allows for firmly holding and accurate centering and makes drilling precise and faster.
• 【FULLY GROUND PROCESS】Fully ground spiral groove design clears particles quickly, decreases friction and heat for faster drilling performance.
• 【PROFESSIONAL & WIDELY USE】Jobber drill bits perfectly Suitable for drilling holes as Stainless Steel, Copper, Cast Iron, Galvanized Pipe, Aluminum Alloy, Wood and Other Softer Metals. Not for Glass or Ceramic Materials.
• 【EASY USE & STORAGE】This metal twist drill bits set includes 10pcs 1/8" Cobalt Drill Bits, This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and DIY, household maintenance and repair.

3/32-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 12

• JOBBER LENGTH: 3/32-inch cutting diameter, 1-1/4-inch flute length, 2-1/4-inch overall length, 118 degree 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.
• APPLICATION: best used for drilling in hard metal, including stainless steel.
• INCLUDE: 12 pieces of 3/32-inch cobalt drill bits with case.