Features 1、Wear Resistance: Made of high speed steel, possess high hardness and wear resistance. The drill center pin is spring loaded 2、High Efficiency: Of sharpness double sided blade with high efficiency. Suitable for thin stainless steel plate, iron plate, aluminum plate, glass fiber reinforced plastic or other thin metal plates 3、Easily Separate: The spot welding cutting bit can easily separate the spot welding panel without distorting the metal plate. Separate spot welded metal plates, panels, etc., and cut out small inspection holes 4、Double Sided Rotary: This welding cutter is a double sided rotary cutter blade, which separates the spot welding panel more effectively than the panel cutter 5、Fit Most Drills: This double sided 3/8in rotating blade and hex shank is fit for most drills Specification Item Type: Spot Weld Cutter Set Material: High speed steel Purpose: Spot welding cutter Type: Double sided rotary spot welding cutter Color: Black + silver Tool Pitch Diameter: 3/8in Package List 1 x Drill Bit with Cutter 10 x 3/8in Cutter 2 x Guide Pin