13Pcs 3/8 Double Sided High Speed Rotary Spot Weld Cutter Drill Bit Tool

Feature: The perfect tool for removing spot-welded panels or metal sheets without distorting the metal or damaging the underlying panel Alleviates the need to pry and break welds Double-sided blades allow for twice the efficiency Allow you to avoid the risk of needing to pause in the middle of a job due to dulling blades Drill slow and steady when using these bits and use high temperature lube (not included) to maximize the life of the blades High temperature lube is the best way to extend blades life but is not required to use this tool. Simply replace the blades when it begins to dull Center pin on the bit is spring loaded and will depress to allow for tension and provide guidance to begin the cut Note: Pre-drilling a hole in the center of the spot weld or using a center punch to create a starting point provides extra guidance/stability when beginning the cut Everything is packaged into a durable plastic tube for easy transport and storage Great addition to any welder s tool kit! Size: 2.3*4.5*9.5cm 4pcs/set includes 2pcs Drill Bit+2 pcs replacement blades