Reviews Drill Bits For Drilling Hardened Steel

Precision Pin Vise Hand Drill with 25pcs Micro Twist Drill Bits Set (0.5-3.0mm) Mini Hand Drill Rotary Tool for PCB,Metal,Wood,Jewelry,Plastic,Resin Manual Making DIY Assembling Drilling

  • Pin vise hand drill-- Aluminium alloy pin vise with 25 pcs HSS twist drill bit, made of strongly materials offers superior performance and easy to use..
  • Wide application---Compact size, useful for electronic assembly, tooling, model making, winding, home improvement and hobby. Multi-purpose hand drill is perfect for drilling a small hole on wood, plastic, rubber, PVC, walnut, model, bones, horns, amber, olives, and other materials, jewelry, plastic, and many other DIY projects that require the drilling of precise holes, instead of steel, iron, stone so hard materials..
  • Adjustable--3 claw hardened steel chuck, the hand drill can be equipped with many drills. (Diameter from 0.3mm to 3.4mm). It can hold slim drill bits firmly. The tightening thread (female thread) should fit properly on the underlying metal and be stable.This hand drill has an adjustable drill holder that matches the different drill sizes you use. Give them variety in jobs that can complete it..
  • Portable & Easy To Store--The pin vise set is including a clear small storage box, convenient for you to organize the small parts when you are no using,and if you need to carry outside,you just need put what you need in the small box,also the transparent color will help you to check whether the pro....
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wowstick DRILL 11 In 1 Mini Electric Drill,Rechargeable Multifunctional Cordless Drill Kit, With 8 Drill Bits， One-Touch Control Pen Drill, Used For Drilling Tools, Diy, Wood,Jewelry Making

  • ...ritten test design is the most comfortable posture. It always makes people feel unsafe and uncomfortable when the cutter head is exposed. This is finally solved..
  • Super structure: screw-free standard 8 bits, high-quality high-speed steel, all-metal gear box to meet various drilling needs, effectively improve the efficiency of micro-drilling, one-key operation, press and hold the switch while pressing to release and stop, with ultra-light , Ultra-quiet, portable and other features..
  • Quick change: The WOWSTICK DRILL kit has 8 drill bits made of hardened steel: 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2.0mm, 2.2mm, it allows 420r/min ± 10% Drilling at a high speed, effectively improving the efficiency of micro-drilling..
  • Wide range of uses: This mini drill set is small in size and light in weight. It is suitable for wood, resin, jewelry, amber, olive, beads, walnut, beeswax, olive fruit, plastic, PVC and many other DIY projects that require precise holes to be drilled..
  • Upgraded power supply: Upgrade the type-c charging port to charge faster and easier, eliminating the cumbersome us....
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Hymnorq 3/8 Inch Fractional Size M35 Cobalt Steel Twist Drill Bit Set of 5pcs, Jobber Length and Straight Shank, Extremely Heat Resistant, Perfect Drilling in Stainless Steel and Cast Iron

  • 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, ideal for repeated drilling in metalworking..
  • FOR METALWORKING - Particularly successful in cutting through hard metals(hardness less than HRC38°) such as stainless steel and cast iron, although they can be used for softer materials like copper and aluminium, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate..
  • SELF CENTERING - The 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. The bits will not "walk" or "wander". Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks..
  • 5PC SET - The set includes 5pcs of 3/8” diameter M35 grade cobalt steel twist drill bits, packed in a convinient and reuseable PVC case for easy storage and carrying. Manufactured to German DIN338 standard..
  • DOWNLOADABLE USER GUIDE - We've summed up some tips of drilling metals, including a RPM chart for several common metals, based on our reviews and some articles on the internet. In most cases, our customers w....
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Makita 2 Pack - SDS-Plus 3/4” Drill Bits For SDS+ Rotary Hammers - 10' Deep Drilling Into Concrete & Masonry

  • ✅ MAKITA’S 2 Pack 3/4” SDS+ Drill Bits for SDS+ Rotary Hammer Drills has 2 Premium, Long-Lasting, Tungsten Carbide Bits for EASY & Reliable drilling, screwing and fastening up to 10" into Masonry, Reinforced Concrete, Tile, Brick & Cinder Block.
  • ✅ Two 3/4" Ultra-Duty Makita SDS-Plus Drill Bits for Up to 10" Deep Drilling Depths.
  • ✅ EASILY & SMOOTHLY DRILL 4-5X MORE into Reinforced Concrete, Brick and Masonry by relying on Makita’s Reinforced, Premium Tungsten Carbide & Steel Bit Integrity for Unmatched EASE, LONG LIFE & SAFE Drilling | The Makita SDS-Plus drill bit flute is designed to allow maximal amount of concrete removal for both ease of use and effectiveness in concrete/masonry drilling.
  • ✅ AVOID LOWER PRICED & lower quality bits that prematurely wear and strain or overheat the powertool, resulting in high bit consumption rate, project completion delays, ineffective drilling and making the overall drilling/anchoring much more difficult | Makita's Single-Piece Steel Bits are heat forged for strength and longevity with a sharp Carbide Tip edge design for maximum impact on masonry/concrete material, allowing for EFFECTIVE and PRECISE drilling.
  • ✅ IDEAL for General Contractors and Construction Industry that require ULTRA DUTY SDS+ bits for....
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Hymnorq 7/16 Inch Dia. x 5.51 Inch Long M35 Cobalt Steel Twist Jobber Length Drill Bits 2PC Set, 135 Degree Split Point, Extremely Heat Resistant, for Stainless Steel and Cast Iron

  • ...g through hard metals(hardness less than HRC38°) such as stainless steel and cast iron, although they can be used for softer materials like copper and aluminium, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate..
  • DOWNLOADABLE USER GUIDE - We've summed up some tips of drilling metals, including a RPM chart for several common metals, based on our reviews and some articles on the internet. In most cases, our customers would get a much better result with these tips. Welcome to download..
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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..
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Hymnorq 1/2 Inch Fractional Size M35 Cobalt Steel Twist Drill Bit Set of 2pcs, Jobber Length and Straight Shank, Extremely Heat Resistant, for Drilling in Stainless Steel and Cast Iron

  • 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, ideal for repeated drilling in metalworking..
  • FOR METALWORKING – Particularly successful in cutting through hard metals(hardness less than HRC38°) such as stainless steel and cast iron, although they can be used for softer materials like copper and aluminium, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate..
  • SELF CENTERING – The 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. The bits will not “walk” or “wander”. Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks..
  • 2PC SET – The set includes 2pcs of 1/2” diameter fractional inch size M35 grade cobalt steel twist drill bits. Total lenght: 5.98 inch.
  • working length: 4.49 inch. Manufactured to German DIN338 standard. Packed in a plastic bag and a flat paper box..
  • DOWNLOADABLE USER GUIDE – We’ve summed up some tips of drilling metals, including a RPM chart for several common metals, based on our reviews and....
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EZARC 5PC Carbide Tip Multi-Purpose Drill Bit Set Hex Shank Masonry Drill Bit Kit for Metal, Wood, Block, Brick, Tile and Plastic

  • ...ndle set includes 13 most commonly used sizes (1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.2mm, 3.5mm, 4.0mm, 4.5mm, 4.8mm, 5.0mm, 5.5mm, 6.0mm, 6.5mm). To meet all daily needs, there are 3 common sizes 1.5mm, 2.0mm and 2.5mm..
  • 【Multipurpose】Small drill bits are suitable for soft metals such as aluminum alloys, especially for drilling holes in wood, plastic, etc., suitable for DIY projects, home maintenance and repairs. Not suitable for drilling glass, ceramics, concrete and hard steel..
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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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