Top 10 Best Drill Bit For Hardened Steel

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.

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..

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.

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..

High QualityM35 Cobalt steel precision ground jobber drill bits for extra durability and long lifetime. Efficient DesignSpecial 135 split point two-blades drill tip 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.. Integrated Hex ShankAll drill bits come with one piece 14-inch hex shank compatible with standard and quick change chucks and drivers. Popular SizesIncludes imperial sizes 316, 14, 516, 38, 12. Packed in storage rail lasered with sizes for easy identification.

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 Includes116, 564, 332, 764, 18, 964, 532, 1164, 316, 1364, 732, 1564, 14 DIA 164 Inch Increments.

DEWALT 21-pack black oxide twist drill bit set is ideal for general-purpose drilling materials like metal, hardwood, softwood, PVC and fiberglass. Parabolic flute design increases chip ejection in metal and wood drilling applications. Black oxide coating helps resist corrosion and increase durability, so your drill bits last longer. 135 Split-point tips drill on contact and prevents walking on the hard surface youre working on. 31 Helix reduces over aggressiveness of true parabolic flute, making it ideal for drilling deep holes.

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.

10Pcs 14 Cobalt Drill Bits10Pcs - 14Dia 6.35mm x 2-34Flute 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 SteelIndustry grade M35 high speed steel drill bit set, much harder than HSS used in other similar drill bits set. These drill bits contain 5 Cobalt, which increases wear-resistance and durability.. Fully Ground Process 135 Split PointFully 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 ApplicationPerfectly 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 WarrantyIf you are not fully satisfied for any reason, please contact us for 100 refund or replacement..