Saiper 13pcs Spot Weld Cutter Drill Bit Set 3/8" Double Sided Rotary Spot Weld Cutter Remover with 2 Replacement Blade, Rotary Hole Punch Drill for Power Drill Spot Welding Metalworking Tools

Saiper 13pcs Spot Weld Cutter Drill Bit Set 3/8" Double Sided Rotary Spot Weld Cutter Remover with 2 Replacement Blade for Power Drill Spot Welding Metalworking Tools   ?Specifications? Material: High-speed Steel Shank Type: Hex Shank Diameter of the Saw Tooth Part: 3/8" (9.5mm)   ?Features? 1. 3/8" Diameter Cutting Blade is Ideal for Removing Spot Welds 2. Center pin on the bit is spring loaded 3. Made of high-speed steel material for high hardness and wear resistant 4. Can quickly separate spot-welded panels without deformation, practical and longer life 5. Separates spot-welded panels more effectively than a panel cutter, small incision resistance,feature drilling stably, fast speed, not breaking the border 6. Suitable for thin stainless steel sheets, iron sheets, aluminum sheets, F.R.P or other thin metal sheets   ?Tips? [1] Pre-drilling a hole in the center of the spot weld or using a center punch to create a starting point provides [2] Drill slow and steady when using these bits and use high temperature lube (not included) to maximize the life of the blades   ?Package Includes? 1 x Spot Welding Drill 2 x Pilot Pin 10 x Extra 3/8" Cutters Plastic Storage Case