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Designed for creating conical holes
Left hand jobber drill bits are for general purpose construction
Torch Compatibility: Can be used with most oxy/fuel or plasma torches
Drill America - 2-1/8-32 UNS HSS Bottoming Tap
#10 x 12" Cobalt Aircraft Extension Drill Bit - High Performance & Durable Cutting Tool | Drill America Hole saws Designed for creating conical holesCobalt drill bits are are effective in drilling tough, high tensile strength materials such as cast iron, inconel, stainless steel and titanium. They display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel. They have a 135 split point tip for fast penetration and accurate drilling. Compared to a conventional 118 degree tip, these drills wont go "walking" on you. Ideal for drilling where extra length