Professional tool for commercial or occasional use Perfect for removing spot welds Cuts a groove around the circumference of the spot weld Interchangeable heads Mixed set it has one spot weld cuuter with interchangeable heads as well as a normal drill type Double ended cutters for longer lasting life of the kit Chrome vanadium shank for strength and durability HSS Cutters Cobalt spot weld drill Suitable for drilling out spot welds on most modern vehicle panels M2 cutters 9pc spot weld cutter set Suitable for use with electric or pneumatic (air) drills Spare centring pins for when needed Special centre NIB design prevents slipping when using SET INCLUDES THE FOLLOWING - 1 x 3/8" (9.5mm) spot weld cutter - 1 x 5/16" (8.0mm) HSS Cobalt Spot Drill - 5 x 3/8" (9.5mm) Cutter head - 2 x spare drill pins Comes in a metal tin for easy storage and transportation