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Countersink drill bits let screw heads sit flush with or below the surface, and the sets here cover wood, metal and plastic. Wood sets include a 7pc 5-12mm countersink drill bit set with hex wrench and a 5pc 8-19mm titanium nitride countersink bit set, while a 6pc HSS titanium set runs from 6.3-20.5mm.

For metal and mixed use there are a 4pc 2-20mm titanium coated HSS countersink set, a 3pc set in 1/2in, 5/8in and 3/4in for aluminium, metal and wood, a 3pc hex shank set for metal, wood and plastic and 6pc right cutting and square left cutting bit sets. A 4 piece hand deburring tool set with 12mm, 16mm and 19mm countersinks cleans up drilled holes. Match the cutter size to your screw heads.