Specification Brand : Greensen BulletPoint1 : Easily Separate Spot Welded Panels: Without causing damage or twisting to metal plates, making the process more efficient. BulletPoint2 : High Strength and High Hardness: This cobalt spot weld drill bit set is designed for durability and long-lasting use. BulletPoint3 : Portable and Accuracy: Fine workmanship with no burrs, providing a clean and smooth cutting experience for sheet metal workers. BulletPoint4 : 3 Different Sized Drill Bits: Including 1/4in, 5/16in, and 3/8in to cater to different needs and tasks. BulletPoint5 : Versatile Usage: The product can efficiently separate spot welding of sheet metal and panels, meeting various requirements. IncludedComponents : F90ES IRON SPOT WELDER MACHINE+6100 ALUMINUM SPOT WELDER MACHINE+MIG250 WELDER MACHINE IncludedComponents1 : 1* Spot Welder IncludedComponents2 : 1* Welding Gun IncludedComponents3 : 1* Pedal Switch IncludedComponents4 : 1* Power Cord IncludedComponents5 : 1* English Manual ItemName : Cobalt Spot Weld Drill Bit Set High Speed Steel Cutter Kit for Removing Sheet Metal Welds Spot Weld Drill Bit ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : spot-welding-equipment Manufacturer : Greensen Material : nickel ModelName : Multizenicz5aoi4s39c-02 ModelNumber : Greensen5ukfhcbax0 NumberOfItems : 1 PartNumber : Greensen5ukfhcbax0 PowerSourceType : Corded Electric ProductDescription : Specification: Condition: New Item Type: Drill Bit Material: HSS CO Color: As Pictures Shown Surface: T itanium-plated Size: 1/4in (6.5mm), 5/16in (8mm), 3/8in (10mm) Length: Approx. 45mm / 1.8in Role: Remove sheet metal welds Weight: 123 g / 4.3 oz(approx.) Aluminum Box Size: Approx. 10 x 8 x 2.9cm / 3.94 x 3.15 x 1.14in