SALI Cobalt Drill Bit Set,2 Pack 1/2 Inch High Speed Steel Hex Shank Jobber Drill Bits, for Hardwood, Aluminum,Metal,Copper,Alloyed Steel

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About This Size and material:Each metal drill bit has a diameter of 1/2 inch and is made of cobalt M35 high-speed steel (hss), which has superior toughness and durability Durabilit y and applicable scenarios:High speed steel improves the surface hardness and wear resistance of drill bits, allowing them to easily penetrate sturdy materials and have a longer service life. Suitable for various scenarios such as metal, wood, plastic, aluminum alloy, etc Withstand heavy blows and quick replacements:The 1/4 inch hexagonal shank design allows the drill bit to withstand high torque transmission and heavy pressure. In addition, the drill bit is equipped with a quick replacement design, which facilitates the quick replacement of cutting tools Quick drilling:The specially designed 135 degree segmentation point prevents the drill bit from moving during contact, making it easy to start drilling. The precise parabolic groove shape helps with rapid chip removal, reducing friction and heat accumulation. Its sharp cutting edges make it easy to cut on wood and metal Work efficiency:Combining high speed and durability, it is favored by electricians, plumbing workers, professionals. Suitable for soft metals such as metal, wood, thin wooden boards, aluminum, copper, etc., as well as for home diy, general construction, and home engineering projects Overview Material : Cobalt M35 High-Speed Steel Cutting Diameter : 0.5 Inches Shank Type : Hex Cutting Angle String : 135 Degrees Brand : SALI Show more