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Push Drill with Adjustable Chuck

Inspired by Speedy777’s Pump Drill link, which was inspired by Performance 3D’s drill), this slightly beefier version features an adjustable chuck that can handle bits from 5mm (3/16”) down to 1.5mm (1/16”). The end of the bit seats in the conical shaped chuck cavity, and the flexy fingers at the tip grab further up the shank. You get 2 full rotations per stroke for fast drilling. It also works as a pin vise for holding needle files.”

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