13 damaged nut and bolt puller Spiral cutting teeth provide reliable grip to remove round or damaged bolts. It can be by metric wrench or socket. Removing nuts is suitable for damaged and rusted nuts and bolts, which is used as the most important conductive and stable tool for unscrewing screws and nuts. You will receive a complete set (13 pieces) of screw remover, which can meet your daily use needs. Name: Screw Remover Kit Material: chrome molybdenum steel Quantity: 13pcs Specification: 3/8(10mm) Colour:As Shown Material:Chrome-molybdenum steel Package Contents: 1 x Screw remover set Only the above package content, other products are not included. Note: Light reflection 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.