Twisted 3.17mm Shank Metal Drill Chuck Collet Bits Rotary with Screw, 0.5-3 mm for RS555 motor
$38.36
$50.64
Chuck for all DIY Pcb drillDrill Collet Size: 0.5mm, 1.0mm, 1.5mm, 2.5mm, 3.0mmCopper Drill Clamp Size: 3.17mmMaterial: copper
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