Brand: Malco Products Manufacturer's Part Number: SW1 Part Type: Spot Weld Cutting Tools Product Line: Malco Spot Weld Cutter Kits Summit Racing Part Number: MAL-SW1 UPC: 686046542553 Spot Weld Cutting Tool Blade Style: Rotary Spot Weld Cutting Tool Blade Size: 5/16， 3/8 in. Drill Chuck Size: 1/4 in. Quantity: Sold as a kit. Notes: Includes 3/8 in. cutter assembly， five replacement cutter bits， a replacement center drill and a 5/16 in. Cobalt drill bit. Malco Spot Weld Cutter Kits Malco spot weld cutter kits provide a complete spot weld removal solution consisting of a 3/8 in. cutter assembly， five replacement cutter bits， a replacement center drill and a 5/16 in. cobalt drill bit. The cutter component includes a double-ended bit， centering drill and non-slip hex shank. The bit threads onto the hex shank and is quickly reversible. The center drill inserts into the shank and is held securely with a set screw. This non-walking drill point pin keeps the cutter centered over the spot weld. The cutter bit and center drill are also easily replaceable on the job. Additional features and benefits:* A cobalt， steel drill bit option features a self-centering， non-walking， shallow design* Removal of spot welds by this method is accomplished without drilling through both joined metal panels* Squared-off drill bit tip leaves a precise， clean hole only in the panel to be removed* Remaining panel requires minimal surface grinding* Kit components are also available separately if user wishes to opt for single solutions