B10 drill chuck: approx 40mm 28.5mm. With B10 precision drill chuck, clamping range: 0.6 ~ 6mm. 1 B10 chuck (can hold 0.6~6mm). 1 B10 chuck key. 1 3.17mm B10 copper sleeve. - Application for hand tools,garden tools, power tools,shredder, sprayer, small cutting machine, small table saw and polishing, drilling, etc.
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