115 Piece Cobalt Drill Bit Set These 100% solid cobalt drill bits retain their hardness up to 1000 degrees Fahrenheit making them ideal for drilling cast iron, heat-treated steel, stainless steel and other hard materials. With aggressive 135 degree tips, these cobalt drills bits not only last longer but also cut faster than standard high speed steel bits! Unlike other coated drill bits they can be resharpened! 29 fractional sizes 1/16″ to 1/2″ by 64ths. 26 letter sizes A to Z. 60 numbered wire-gauge sizes 1 to 60 by 64ths. Aggressive 135 degree tips. Split point prevents skating. Convenience storage indexed case (color either black or gray). Actual Feedback From Buyers. I would by more stuff from them they were extremely helpful. A pleasure to do business with. Thank you for such a great product. Came in so fast I had to duck… The item “115 Pc Drill Bit Set Letter Number COBALT” is in sale since Thursday, May 31, 2018. This item is in the category “Home & Garden\Tools\Power Tools\Drill Bits”. The seller is “itruststore” and is located in Carlton, Texas. This item can be shipped worldwide.

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