0.3-4mm Mount Key Type Power Drill Chuck Clamp W/ 3.17mm Motor Shaft Coupler NEW

3.17mm shaft coupling motor connector brass. Drill clamp JT0 connection rod connect motor drill for 3.17mm motor shaft. Drill Chuck For 0.3~4mm JT0 drill clamp. High strength and hardness. Compatible with impact drill and different power electric drill.

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