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Description:M35 cobalt 5% cobalt added for added hardness and heat resistance. Rockwell hardness is up to 67. It can cut faster and has a long life, up to 12 times compared to the average HSS bit.Self-centering! The 135 ° cutting guide gap is self-centering, which can penetrate quickly with less pre..

Description: High Speed Steel Drill Bit Set For Wood, Plastic And Aluminum.Ideal for DIY, Home And General Building/Engineering Using.Titanium Nitride Coating For Cooler Running.High Speed Steel For Long Life.Specifications:Material High Speed SteelFunctionHigh Speed Steel  Drill Bit..

Description:M35 cobalt 5% cobalt added for added hardness and heat resistance. Rockwell hardness is up to 67. It can cut faster and has a long life, up to 12 times compared to the average HSS bit.Self-centering! The 135 ° cutting guide gap is self-centering, which can penetrate quickly with less pre..