High Speed Steel Twist Drill Bits 20Pcs Rotary Drilling Jewelers Repair Tools
20 High Speed Twist Drill Bits Great for Metalsmiths, Metal Working &
Drilling
- The is a new set of 20 high speed steel twist drill bits
- Great for drilling ferrous metals, tough casting sand forgings, working
hardened stainless steel and other hard steels and tough high tensile strength
nonferrous metals like titanium
- These bits are sizes #61 to #80
- Drill Bit Sizes in mm
- #61 - .991mm
- #62 - .965mm
- #63 - .940mm
- #64 - .914mm
- #65 - .889mm
- #66 - .838mm
- #67 - .813mm
- #68 - .787mm
- #69 - .742mm
- #70 - .711mm
- #71 - .660mm
- #72 - .635mm
- #73 - .610mm
- #74 - .572mm
- #75 - .533mm
- #76 - .508mm
- #77 - .457mm
- #78 - .406mm
- #79 - .368mm
- #80 - .343mm
Newer versions of the item shown may be shipped, as a result, there may be
a slight variation in color and design.