-Angle Design: Tricuspid Centering – accurate centeringfor sharp and precise countersinking.-Flute Type: Five-edged chamfer – fast discharge chipsfrom the hole on both sides automatically.-Hex Wrench – Easy to use the combination of the hexkey to adjust or disassemble the countersink drill bit andthe five-flutes chamfering.-Set Includes:3mm, 4mm, 5mm, 6mm, 7mm, 8mm,10mm and FREE Hex key wrench.
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