Clamping Diameter:0.5mm/0.8mm/1.0mm/1.2mm/1.5mm/1.8mm/2.0mm/2.4mm/3.0mm/3.2mm Package include: 10 * metal drill chucks collet, 1 * screw nut Design with portable size, easy for you to carry with Those could improve small shank performance for hex-shank and other chuck's Pure brass material, made by special heat treatment, it has higher hardness and durability
Clamping Diameter:0.5mm/0.8mm/1.0mm/1.2mm/1.5mm/1.8mm/2.0mm/2.4mm/3.0mm/3.2mm Package include: 10 * metal drill chucks collet, 1 * screw nut Design with portable size, easy for you to carry with Those could improve small shank performance for hex-shank and other chuck's Pure brass material, made by special heat treatment, it has higher hardness and durability
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