Rotate Speed: 15000RPM. 1/4" Straight Air Die Grinder Pneumatic Grinding Sanding Tool 3mm 6mm Collet. 4pcs Collet Chuck Air Die Grinder Grinding Machine Collet 3mm 3.18mm 6mm 6.35mm. Micro Air Die Grinder Kit Mini Pneumatic Pencil Polishing Rotary Cutting Tool.
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