General description High strength and high hardness, the CSPARKV Spot Weld Drill Bit Set is designed for durability and efficiency. This set includes three drill bits specifically crafted to easily separate spot welded panels without twisting the metal plates, making it ideal for removing sheet metal weld joints. Technical specifications Material: HSS CO Surface: Titanium Plated Sizes: 1/4in (6.5mm), 5/16in (8mm), 3/8in (10mm) Length: Approx. 45mm (1.8in) Usage Designed to remove sheet metal welds Suitable for a wide range of applications Easy to carry and use