Reversal countersink drill

A reverse countersink drill comprises a cavity arranged at the head part of a cutter body thereof, a rotary cutter holder arranged on a pin roll and positioned in the cavity, and a cutter blade arranged on the cutter holder and pressed by a press plate and a screw bolt. The utility model is applicab...

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1. Verfasser: XIAORONG CHU
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A reverse countersink drill comprises a cavity arranged at the head part of a cutter body thereof, a rotary cutter holder arranged on a pin roll and positioned in the cavity, and a cutter blade arranged on the cutter holder and pressed by a press plate and a screw bolt. The utility model is applicable for processing counterbore; the cutter holder and the cutter blade are collected into the cavity when the countersink drill stops working, and the cutter holder spreads out automatically under centrifugal action when the countersink drill is working. The utility model has the advantages of simple operation, high work efficiency, convenient assembling and sharpening of the cutter blade, wide application range, and reliable application.