Top 8 Best Hardened Steel Drill Bits

Material YG Cemented Carbide Chrome Vanadium Steel. Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel.. The mistake that a lot of people make is using high speed steel twist drills at high speeds. If you search for machining speeds and feeds you will find a lot of information about the correct speeds to run cutting tools against different types of metal. Twist drills are the category of cutting tool you are looking for.. As soon as the heat starts to build up on the tip, the drill bit can lose the hardness that make it a cutting tool. Using HSS drills at low rpm with cooling fluid or lubricant can provide a large quantity of successful holes in metal. TThere have chunks of carbide on the end, and carbide will make easy work of even the hardest steel, and allow you to use high rpms. In the process of opening holes to continue to add water for cooling.. High toughness, abrasion resistance, high-speed cutting for the high hardness.. Size 3mm 4mm 5mm 6mm 7mm 8mm 9mm 10mm 11mm 12mm 13.5mm 14mm 15mm..

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. Thick web-helix design provides additional stability in tough applications. Surface-hardened tip penetrates tough abrasive materials. Includes 116, 564, 332, 764, 18, 964, 532, 316, 732, 14, 516, 38, 12.

High QualityM35 Cobalt steel precision ground drill bits for extra durability and long lifetime. Efficient DesignStubby drill bits measure from 1.84 to 2.32-inch only, allowing access to hard-to-reach and tight spaces. 135 split point two-blades special design drill tip 18-inch and larger for perfect self-centering and fast drilling. Multi-Purpose UseSuitable for drilling stainless steel and various hardened metals such as cast iron, titanium, bronze, aluminium, etc. All drill bits come with one piece 14-inch hex shank compatible with standard and quick change chucks and drivers. Popular SizesIncludes imperial sizes 332, 18, 316, 14 and 516. Unique PackagingPacked in special plastic box for easy storage, imprinted with drill bit sizes for easy identification. Sliding clip on backside of box for hanging on pegboards.

115 Pieces Set Includes 29pcs Fractional Size 116 to 12 inch bits in 164th increments 26pcs Letter Size A To Z 60pcs Numbered Size 1 To 60 Set includes the drill bit holder with size index for easy storage and organizing. Perfect Drill Bits Precision grinding process for a clean surface and high grinding accuracy. Universal round drill shank, widely applicable of tool holding systems and tightly clamped. 135 Split Point Twist Design The 135 degree fast cutting point is automatically centered and penetrates quickly with less pressure, reducing walking, fully ground drill bit with sharp and durable cutting edge. Twist design for clear chips faster. Enhanced M35 Alloy Material These drill bits contain 5 Cobalt alloy steel, which increases wear resistance and durability. Industry grade 6542 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. QUALITY COMMITMENT If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back. 100 Satisfaction Guarantee for risk-free shopping.

SET OF 13 COBALT DRILL BITS - In the following imperial sizes 14, 1564, 732, 1364, 316, 1164, 532, 964, 18, 764, 332, 564, 116. M35, Fully Ground, 135 Split Point - Our Drill Bits Contain 5 Cobalt, Are Fully Grounded for a Precision Drilling Diameter. 135 Split Point Design Makes it Easier to Drill Repeated Holes in Harder Materials.. PLASTIC STORAGE CASE INCLUDED - Incredibly Tough and Durable Plastic Case. Perfect for Keeping Your Cobalt Drill Bits Neatly Organized and Safe.. COBALT DRILL BITS ARE THE PERFECT DRILL BITS FOR METAL - As well as other hard materials such as Stainless Steel, Hardened Steel, Cast Iron, Bronze, Titanium, and More. LIFETIME GUARANTEE - Here at Owl Tools USA Based Company we only care about your satisfaction. We try our best to ensure each product is in perfect condition before you get it, but if something is not up to your satisfaction, please contact us for a full refund or replacement..

DEWALT drill bit set has connectable accessory storage system to optimize storage space. Patented bit-bar design of the drill bits set allows easy removal of bits and customizable placement. Clear lid of the Titanium Nitride Coated drill bit set allows you to easily see contents at glance. Clip latch for secure closing. Small Bulk Storage size fits inside the Small and Medium ToughCase plus sold separately - Ideal for organizing loose bits. Includes 116 x 2, 564 x 2, 332 x 2, 764 x 2, 18 x 2, 964 x 1, 532 x 1, 1164 x 1, 316 x 1, 1364 x 1, 732 x 1, 1564 x 1, 14 x 1, 516 x 1, 38 x 1, 12 x 1. Tapered web provides greater durability to reduce breaking.. Drill Bit Set includes sizes from 116-inch to 12-inch in a plastic tough case..

Premium Bright Finish 2Pack multi-purpose solid carbide drill bits provide better rigidity than high speed steel bits. It is extremely heat resistant and used for high speed applications. Our tungsten carbide WC bits has the advantage of cutting metal either wet or dry and they provide solutions for many businesses such as aerospace drilling jobs for aircraft mechanics, precision machining, hobby supply, etc.. Recommended For Use On aircraft metals chrome titanium inconel stainless steel Alloys Steel Low-Medium-High Carbon Steel Aluminum Copper Glass Plastics Composite Materials Cast Iron -- Our Carbide drills stay sharp many times longer than traditional steel bits making them ideal for the toughest of applications. Optimal Design for Metal Work 118 four facet point angle minimizes drill wander and assures accurately sized holes. Our jobber length, precision ground carbide drills are designed for high feed rates with good chip disposal. smooth finish on the bits increases chip flow. Spiral flutes are constructed with a higher flute angle to remove chips more easily.. Specs Flute Length 1-38 inch, Overall Length 2-12 inch, Drill Size 532 inch Tungsten Carbide Grade ISO K20 Binder 8 Cobalt Hardness 91.3 HRa Uncoated. Tungsten carbide is a composite material, although it looks like a metal, it is a composite of Tungsten carbide powder mixed with cobalt as a binder metal, the resulting material is more like a ceramic than a metal. It is a very hard material being a 9 on the Mohs scale where diamond is a 10 and hard steel around 5. It will chew down into most anything but the hardness makes them brittle with virtually no plasticity. Unstable drilling can result in a broken bit. These drills like a a rigid dri.

Drill 3x Longer than competitors drills, Drill 2x Faster than cobalt, Drill Accurate 135 deg split point, tapered web geometry. Better than cobalt-XL5 is able to flex when cobalt drills chip or snap. Premium high speed steel and NOMO surface treatment for longer tool life, fast penetration, and flexibility. Self centering 135 degree split point prevents drill from walking. Ultimate workhorse for drilling steel, stainless steel, titanium alloys and other hard to drill materials.

HIGH QUALITY MATERIAL 5 Cobalt High Speed Steel M35 provide extended tool life compared to ordinary drill bits. Durable and strong. TWIST DESIGN PERFORMANCE PRECISE 135SPLIT POINT, gold oxide finish and round straight shanks. Prevent walking, clear chips and particles faster.Produced by precision fully ground which ensures chips move smoothly.. 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.. SIZE INCLUDED 15pcs jobber length drill bit set with plastic storage case including sizes116 2pc,564 1pc ,332 2pc,764 1pc,18 2pc ,964 1pc, 532 1pc, 316 1pc, 732 1pc, 14 1pc, 516 1pc, 38 1pc.. 100 SATISFACTION GUARANTEE If you are not 100 satisfied with your purchase for any reason whatsoever simply please feel free to contact us..