The reamer is 6 fluted with a T-handle and comes with handles for additional to help keep the holes round. Made of hardened carbon steel and steel edges to the ground. These steel reamers have the appropriate holes for bridge bolts or pins. Suitable for conical holes in the wooden board, holes for wooden sink, chamfering, inverted cone. Conical reamer only, other demonstration accessories in the picture are not included. Use: wood drills : wood work: Model Number: 3mm-13mm bridge bolt manual hole reamer T tapered handle Type: drill bit size:128*85mm Material:steel colour:Black + Silver Package Contents: 1 * Tapered Reamer Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.