Reviews Metal Cutting Drill Bits

5/16-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 6

JOBBER LENGTH: 5/16-inch cutting diameter, 3-3/16-inch flute length, 4-1/2-inch overall length, 135 degree split point, 3-flat 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: 6 pieces of 5/16-inch cobalt drill bits with case.

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Step Drill Bit Set - Titanium Coated, High Speed Steel Drill Cone Bits for Sheet Metal Hole Drilling Cutting, HSS Multi Size Hole Stepped Up Unibit for DIY Lovers,3pcs

【QUILITY STEP DRILL BITS】 The step drill bits are made of classic high-speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, wood board, copper, stainless steel and many other types of sheet metal..
【DOUBLE CUTTING BLADES DESIGN】The HSS step drill bit set is designed with double cutting blades, which provides faster, smoother and accurate drilling..
【TRI-FLATTED SHANK】 Each unibit step drill bit optimally fits into power tools such as impact drill chucks securely and eliminates slip for higher efficiency of output..
【WELL PERFORMED 】 The multiple hole drill bit set include 28 size, which can cuts through steel, sheet metal, wood board and other surfaces creating relatively clean holes as you drill. Suitable for home DIY, and general building/ engineering use.t slippage and shedding during the rotation..
【SET INCLUDES】The cone drill bits set includes 3 common sizes for versatility. Bit #1 (6 steps): 3/16.

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amoolo 1/4\ Cobalt Drill Bit(10 Pcs), M35 HSS Metal Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron

【10Pcs 1/4" Cobalt Drill Bits】10Pcs - 1/4”(Dia 6.35mm) x 2-3/4”(Flute Length 69.85mm) Metal 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 organization..
【M35 Cobalt High Speed Steel】Industry grade 6542 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. These drill bits also contain 5% Cobalt, which increases wear-resistance and durability..
【Fully Ground Process & 135° Split Point】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. No center punch is needed..
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling..
【90 Days Warranty】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement..

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Yougfin Step Drill Bits with Automotive Center Punch,Unibit Titanium Coated High Speed Steel Step Bit Set for Hole Drilling,50 Sizes with Aluminum Case for DIY Lovers,5+1pcs

【High Quality Material】：High-speed steel, also known as HSS, is the most common drill bit for metal applications. It incorporates an element with titanium that makes the drill bit harder than a typical HSS bit and thus suitable for sheet metal working and are ideal for cutting non-ferrous metals, plastic, wood board, etc.
【Extra Automatic Center Punch】：You know how when you try to drill into metal or hard surfaces and your drill bit "walks" no matter how much you think it's steady? Yeah, we have a tool for that. The automatic center punch has a heavy-spring action, and you simply place the tip where you want to drill, and it punches a slight indentation in the surface. Just enough so that the drill bit won't walk.
【118° Split Point】：These step drill bits have a small point angle of 118° and require less pressure when centering in the material. The point starts drilling at contact, reducing friction, pressure, and heat. The larger the point angle, the higher the contact pressure and the centering in the material requires more pressure.
【Double Flutes & Tri-Flatted】：These drill bits feature a special dual flute straight design for dependable performance and durability. And the shanks on these step drill bits have three f....

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COMOWARE Impact Screwdriver Bit Set with Titanium Drill Bits - Quick Release Twist Drill Bit Set with Tough Case, Impact Driver Bit Set Total 35Pcs

... can be widely used on electric screwdrivers, hand screwdrivers, cordless drills, electric drills, air drills and so on. The bits are also impact-rated and for use in ¼” hex impact drivers (sold separately)..
【HSS-Ground Titanium Coating】Classic HSS construction with titanium coating to sustain long life. The cutting edge is hardened and honed for drilling accurate and clean holes in metal, wood and plastic, 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..

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AMOOLO 3/16' Cobalt Drill Bits(10Pcs), M35 High Speed Steel Jobber Length Twist Drill Bit Set for Hardened Metal, Stainless Steel, Cast Iron, Plastic and Wood

【10Pcs 3/16" Cobalt Drill Bits】10Pcs - 3/16”(Dia 4.76mm) x2-5/16”(Flute Length 58.74mm) Metal 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 organization..
【M35 Cobalt High Speed Steel】Industry grade 6542 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. These drill bits also contain 5% Cobalt, which increases wear-resistance and durability..
【Fully Ground Process & 135° Split Point】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. No center punch is needed..
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling..
【90 Days Warranty】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement..

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AMOOLO 1/8' Cobalt Drill Bits(10Pcs), M35 High Speed Steel Jobber Length Twist Drill Bit Set for Hardened Metal, Stainless Steel, Cast Iron, Plastic and Wood

【10Pcs 1/8" Cobalt Drill Bits】10Pcs - 1/8”(Dia 3.18mm) x1-5/8”(Flute Length 41.28mm) Metal 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 organization..
【M35 Cobalt High Speed Steel】Industry grade 6542 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. These drill bits also contain 5% Cobalt, which increases wear-resistance and durability..
【Fully Ground Process & 135° Split Point】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. No center punch is needed..
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling..
【90 Days Warranty】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement..

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VALYRIANTOOL 1/8″ Cobalt Drill Bits(20PCS), M35 HSSCO High Speed Steel Double Ends Stubby Body Twist Drill Bit Set for Hardened Metal, Stainless Steel, Cast Iron, Plastic and Wood

【20PCS 1/8″ Cobalt Drill Bits】20PCS – 1/8″(Drilling Diameter) x5/8″(Flute Length)x2″(Overall Length) Metal Drill Bits. This drill bit fits the majority of power drill currently on the market..
【M35 Cobalt High Speed Steel】Industry grade M35 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. These drill bits also contain 5% Cobalt, which increases wear-resistance and durability..
【Fully Ground Process & 135° Split Point】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. No center punch is needed..
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. Pay attention to speed, pressure and heat control during drilling..
【90 Days Warranty】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement..

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NEIKO 10180A Steel Spiral Quick-Change Step Drill Bit for Metal with 4-Flute Spiral Grooved Design, Nitride-Coated High-Speed Steel Multitool with 12 Sizes in 1 Step Bit, Unibit, Hole Drill Bit

HIGH-QUALITY DRILL BIT: Our individual NEIKO 10180A step drill bit is made with #4241 high-speed steel and has a titanium nitride coating for extra durability. The 4-flute spiral grooved design makes this a fast and long-lasting metal cutting tool..
QUICK-CHANGE DRILL BIT: With a 1/4-inch quick-change hex shank, this step drill bit fits securely in most pistol drills or drill presses. Use this cone-shaped, versatile, and small drill bit for metal projects at work or home..
DRILL BIT FOR HARDENED STEEL: This stepper drill bit for metal is perfect to create the exact hole size you need. The fluted spiral drill-bit design automatically deburrs and expands holes for a cleaner drilling process every time without heating up..
MULTISIZE DRILL BIT: This metal step drill bit can drill holes in 12 different sizes to meet any job requirements. Our 12-step drill bit for metal drills holes in 1/16-inch increments ranging from 3/16″ to 7/8″ to create the perfect-sized holes..
HEAVY-DUTY DRILL BITS: Our drill bits are created to work with any project, large or small. Our multifunction drill bits are designed with you in mind, so you can get your work done with confidence and speed using our quality tools!.

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