TREND SNAP/CS/12 SNAPPY COUNTERSINK DRILLBIT 3.5mmHeat treated tool steel countersink with a HSS drill. Adjustable for different length screws and can produce a 9.5mm (3/8 inch) diameter counterbored hole for woodplugs. The drill produce pilot holes only. Specifications: D 3/8 inch D 9.5 mm D2 1/8 inch D2 3.25 mm Shank Diameter 1/4 inch hex Screw size S/W No.10 H/W No. 8
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