Total length 55 - 69 mm, shank - 6 mm (1/4"), tip outer diameter - 10 mm, tip blade length 8 - 25 mm High quality : Made of high quality heat treated tungsten carbide to ensure its hardness can reach HRC70; Multi-purpose tool: ideal for detail work, widely used in metalworking, woodworking, model engineering, wood carving, jewelry making, welding, chamfering, forming, deburring, sanding, etc. Easy to use: usually can be used with electric or pneumatic hand tools (it can also be used on machine tools, the speed of electric/pneumatic tools is generally around 6,000-50,000 rpm; 3) shapes include: pointed shaft, tapered nose, cylinder with cupped end, cylinder with bulbous nose, spherical.Adapt it to most DIY jobs, such as detailing, cutting, carving, engraving, retouching and finishing. Note: there may be a slight color difference from the product image Sold by Bianco FR store