Description: 0.3-4mm Electric Drill Chuck Adaptor Rotary Tool Grinder Folder Shaft with Key Specification: Model JM2104H Material H.S.S Clamping range 0.3-4mm,JT0 Precision 0.18 Size of Chuck H*Dia\/30*20mm\/1.18*0.78'' Size of T-shaped Key L*W\/55*35mm\/2.16*1.37'' Features: Mini electric grinder drill clip. Accurate precision,reliable and durable. High precision thread can connect to the tool very closely. Jaws have been special treated, has good abrasion resistance. Package Included: 1 x Mini Drill Chuck 1 x T-shaped Key More Details: