Frequently techs experience great difficulty removing frozen studs and bolts during strut, break hub, front end, exhaust, spring and suspension repair.The Lock Technology LT1800 4-pc Offset Impact Driver Set are forged with a 15-degree angle at the drive head end. The angle can be increased up to another 30 degrees due to a machined recessed well at the head of the tool. Four machined anti-turning slots at the base of the driver prevent the offset driver from turning during use in the impact chisel. Three sizes of well head available: 0.410", 0.530" and 0.725" reach the most inaccessible of fasteners. Also included is a 0.990” straight shaft non-turning air hammer.