1/4 inch Hex Shank Wire Brush: Upgrade the normal round shank to hex shank to improve firmness during operation. No loosening or slipping even when processing heavy loads. Wire Wheels 2 Sizes: 1in, 1.2in wire brush set 9 separate pack, two sizes make it easy to do precision work in small spaces. Rotating Wire Brush: Can withstand a high speed of 4500/min and can complete tough jobs quickly without loosening or slipping. Wire wheel hole brush is widely used: rust removal, paint removal, deburring, smoothing weld scars and wood processing, the two sizes of wire brush can challenge almost any situation Color: silver Material: steel Package Contents: 3 set x wire brush for drill Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.