General description Professional mushroom nail tyre repair drill bit designed for use with low-speed pneumatic drills. Made from high-quality alloy steel, these bits offer high hardness, wear resistance, strength, toughness, heat resistance, and corrosion resistance. The unique fish scale edge and triangular rhombus cutting design provide anti-skidding properties for a more secure use. Technical specifications Material: Alloy steel Shank diameter: 6mm/8mm Color: Silver Measurement error: +/- 1-3cm Package Contents 2 x Drill Bit Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.