SIZESuitable for 8mm shank hand drills, stand motor drive drills. length of the diameter of . MATERIALThis product has a sharp edge, high hardness, precise positioning, smooth cutting and impact resistance. Cemented carbide can improve speed and life, durable and hardened. APPLICATION These shanks are suitable for solid wood, MDF, chipboard, design profiles, for smooth and fine cuts as well as for the production of stylish furniture. They are also suitable for milling grooves on picture frames, signs, clocks, pylons and other wall tools to create keyhole hangers or to create grooves for cables. FEATURES The hard alloy blade has high-quality welding to provide stable quality and high efficiency, without worrying about broken and sloping problems during your work. The blade is sharp and durable, adopts arc curve design, advantageous to pull out, punching is more efficient. SUITABLECan be used on CNC and other auto routers and portable and desktop routers. Electric cutting machine, bakelite milling machine, engraving and milling machine, CNC engraving machine, CNC machining center and other processing tools. Note: The data is manual measurement, please please allow 1-9cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.