SP515 | 5 pc. Hex Shank Screw Pilot Bit Set | Bosch
2021-7-25 · Bosch Hex Shank Screw Pilot Bits drill precise, clean pilot holes in wood, plastic and composite materials. Used for fast countersinking and counterboring in one operation, these pilot bits drill countersink pilot holes for flush screws. The drill bits are replaceable. The screw pilot bits provide adjustable countersink depth with an Allen® wrench.
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