ITEM NAME:Red Collet Chuck Wrench Spanner Precision Collet Wrench CNC Milling for Cla L6R5 Red Collet Chuck Wrench Spanner Precision Collet Wrench CNC Milling for Cla L6R5 Product Name : Collet Chuck Wrench; Type : Single Ends Model : ER40UM Used widely for tightening and loosening screws and nuts. Weight : 390g Built in a hanging hole. colour:Red + black Material:Tool steel size:Opening width: 57 mm / 2.2 inches (left and right) Total dimensions: 275 x 85 x 6 mm / 11 inches x 3.3 inches x 0.24 inches (L * W * T) Package Contents: 1*Wrench Spanner