This set contains a selection of left hand spiral drill bits and screw extractors for removing broken or damaged studs and fasteners. Constructed of M35 steel with 5% Cobalt for longer life. They give a superior performance even when drilling challenging materials such as stainless steel and high alloy steel. For tough or hard metal drilling such as high tensile and hardened steels, including stainless steel (Cr-Ni) and purpose made acid resistant metals. Left hand spiral drill bit sizes: 5/64", 7/64", 5/32", 1/4" and 19/64" Engineering quality, Longer life, Superior performance with stainless steel HSS M35, 5% Cobalt, HRC: 65-67, Fully ground, 135 Degree split point, DIN338 Standard, Amber finish Screw extractors sizes: #1, #2, #3, #4 and #5 Engineering quality, Longer life, HSS M35, 5% Cobalt, HRC: 52-58, Mill white finish Supplied in metal storage case Part No 7080
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