SPOT WELD CUTTER KIT: Experience with our double-sided 3/8" & 5/16" spot weld cutter featuring high-speed steel construction. With a hardness of 63-66 HRC, this kit offers superior sharpness and piercing capabilities, making it ideal for efficient and clean metal cutting. COBALT SPOT WELD DRILL BIT SET: Designed to separate spot welds without distorting the sheet metal, our cobalt spot weld drill bits are coated with heat- titanium. This allows for high-performance drilling in both metal and wood, even in high-temperature environments, ensuring durability and . FLEXIBLE USE: Our double-sided rotary cutter blade outperforms traditional panel cutters by separating spot-welded panels more effectively. The easy-to-replace blades continuous sharpness, allowing for quick and clean round hole cuts without burrs, enhancing your work efficiency. FIT FOR VARIOUS MATERIALS: This versatile spot weld drill bit set is perfect for working with thin stainless steel, iron, and aluminum sheets. Ideal for automotive bodywork, sheet metal fabrication, and equipment repair, it provides a reliable solution for various metalworking needs. PACK: The set includes 2 pcs Spot Weld Drill, 5 pcs Replacement Cutting Blades, and 2 pcs Pilot Pin Replacement. With additional 3 pcs spot weld drill bits sized 1/4in (6.5mm), 5/16in (8mm), and 3/8in (10mm), it covers the most common needs in automotive and metalworking projects. Color: As Shown Material: Metal Package Contents: 1*Spot Weld Cutter Sets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.