Used but very much life left on it. Sandvik Coromant Swedish carbide rock drill bit, VERY heavy duty! I cut through New England granite boulders with these suckers with relative ease.
16" Premium Concrete Core Drill Bit 1-1/4 -7 Threads Our premium diamond core drill bits for concrete are designed to drill deep into concrete. Concrete is more abrasive than granite. As a result, our diamond segments for concrete core drill bits are formulated to be more tightly bonded to ensure both life and drilling speed.
11" Premium Concrete Core Drill Bit 1-1/4 -7 Threads Our premium diamond core drill bits for concrete are designed to drill deep into concrete. Concrete is more abrasive than granite. As a result, our diamond segments for concrete core drill bits are formulated to be more tightly bonded to ensure both life and drilling speed.
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This listing is for the tool described in the title. Features and Benefits: Made from premium grade cobalt steel Fully heat treated for a longer tool life Double ended for quick changes Modified center spur designed to cut welds on the top panel, leaving the back panel slightly penetrated Made in the USA Shipping to Canada 3$USA 5$Worldwide 7$ Additionnal item is 1$ for shipping (I have only one Weld drill bit per Size)
New Irwin 13 Piece Speedbor Wood Drill Bit Set Specifications: Blue Groove makes for faster chip removal Double cutting spurs scribe the hole reducing breakout 10% larger shank adds durability Grooved quick change shank prevents slipping when used in a drill chuck or bit extension Set includes
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