With the 5-piece Hikoki 780128 hss-g countersink set, you sink screw heads completely flush into metal, wood, and plastic for a clean, professional finish. Featuring a standard 90° countersink angle, these bits are ideal for deburring hole edges and preparing pre-drilled holes for metric fasteners. The fully ground hss-g high-speed steel construction ensures sharp cutting edges, smooth operation, and long tool life. Ranging from 12.4 mm to 20.5 mm in diameter, this versatile set provides the right sizes for your fabrication, assembly, and maintenance tasks.
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