2/Pack 1/4 inch Solid Carbide Drill Bit for Hardened Steel Hard Ness HRa 91.3...

Description

2/Pack 1/4 inch Solid Carbide Drill Bit for Hardened Steel Hard Ness HRa 91.3 Aerospace Standard K20 Tungsten Carbide Jobber Length Twist Drill for Metal 118 Degree Four Facet Point Fractional Size
★【Premium Bright Finish】 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.
★ SPECS:【Pack of Two】【Drill Size 1/4 inch】【Flute Length 2 inch】【Overall Length 3-1/4 inch】【Tungsten Carbide Grade (ISO): K20】【Binder: %8 Cobalt】【Hardness: 91.3 HRa】【Uncoated】
★【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.
★【IMPORTANT, PLEASE READ BEFORE BUYING】Tungsten Carbide or cemented 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 and 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, quartz a 7 and hard steel around 4.5. Due to its hardness, it will chew down into most anything But that hardness makes them brittle on side lo
✔ Drill Size: 1/4 inch ✔ Flute Length: 2 inch  ✔ Overall Length: 3-1/4 inch ⚠【IMPORTANT, PLEASE READ BEFORE YOU BUY】⚠ ① Tungsten carbide or cemented 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 and the resulting material is more like a ceramic than a metal.  ② It is a very hard material being a 9 on the Mohs scale where diamond is a 10, quartz a 7 and hard steel around 4.5. Due to its hardness, it will chew down into most anything But that hardness makes them brittle on side load with virtually no plastic deformation before failure.  ③ Any movement while drilling can result in a broken bit. These drills like a rigid drilling setup like a drill press or a machining center, they do not like hand drills.  ④ You can use them in a hand held drill but you have to make sure not to misalign the drill, the drill must be perfectly square for the whole operation. Mars-Tool Solid Carbide Drill Bits are very different from carbide tipped drill bits.  Solid carbide drill bits are much more effective in deep holes,  can go through hardened steel,  have much better heat tolerance and  can be sharpened many times (diamond stone is required to sharpen tungsten carbide)
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2/Pack 1/4 inch Solid Carbide Drill Bit for Hardened Steel Hard Ness HRa 91.3 Aerospace Standard K20 Tungsten Carbide Jobber Length Twist Drill for Metal 118 Degree Four Facet Point Fractional Size