【Quality Material】High strength keyless chuck made of HSS and ABS, very strong and durable, anti-abrasive, impact resistant. 【Size Range】The size of the drill chuck adapter is adjusted from 2mm-13mm, so it is suitable for 2mm-13mm drill bits. 【Easy to Use】Just plug it in, hand tighten your standard bit and you're done, convenient to use standard bits on SDS, GSB and GSR. Suitable for 1050w power -above drill percussion. 【Strong Grip】SDS chuck with unique torque thrust bearing, delicate design, to achieve strong grip by simply tightening the chuck, fixed and stable. 【Removable】The adapter is removable, to replace it according to your needs, so you don't need to ask for extra drill bit for.