Best Drill Bits For Metal, Stainless Steel and Hardened Steel. Having a hard time finding the correct drill bit for the kind of steel you need to drill. You have found the right video to watch. I will explain it all from HSS (high speed steel), Cobalt Drill Bit, Carbide Drill Bit, Massonry Drill Bit, Locksmith Drill Bit.
The Ultimate Guide To Drill Bits, Cobalt, HSS, Carbide, How to chose the best drill bit for Stainless steel, Hardened steel,
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This is The Ultimate Guide To Drill Bits. Putting HSS (High Speed Steel), Cobalt, Carbide tipped and solid Carbide drill bits to the test. Yes It's long but Compared to the Year + it took to gather the information it's not that bad. So Sit Back and learn or keep wasting your money on junk, trash bits that keep breaking and not drilling through what you want them to.
RHC - Rockwell Hardness C
HSS Drill Bits - Work well up to the 50ish RHC
Drill - Mild steel, Some tool steel, Some Spring Steel
No Drill - Hard Plate, Anti Drill Plate, 404c Stainless Steel
Pro - Good in Hand Drills and most drilling applications
Con - Has limitations in hardened steels
Cobalt - Works up to 58ish RHC
Drill - Mild Steel, Some Spring Steel, Some Tool Steel
No Drill - Hard Plate, Anti Drill Plate, 440C Stainless Steel
Pro - Good for hand drills and most drilling applications
Con - Has limits with hardened steel
Carbide Tipped - Will drill almost any steel, Hard, Stainless or Mild.
Pro - Drills all steel
Con- Blunt tip requires extreme pressure to produce cuttings. Drill bit is hard to start on all steels.
Diamond Coated Drill Bit - Cuts on most steels(Not Hard Plate) just not for long.
Pro - Will Drill most steels (Not Hard Plate)
Con - Cutting stops quickly after diamond grit has warn off, Then behaves like HSS bit
Solid Carbide Drill Bit - Cuts all steels.
Pro - Sharpened points wont "walk" like carbide tipped bit. Cuts all steel
Con - Sharp tip and fine edges can chip easily and ruin drill bit. Not for hand drills. Expensive!
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Drill bits purchased from www.drillbitwarehouse.com Discount Code - lockman1