SIZE Suitable for 5 or 16 (8mm) shank hand drill bits, stand motor drive drill bits. cutting diameter length: 7.93 or 9.52 or 12.7mm. MATERIAL This product uses YG6 hard alloy with sharp edge, high hardness, precise positioning, smooth cutting and impact resistance. APPLICATION These 1 or 4 shank are suitable for solid wood panels, MDF, chipboard, design profiles, for smooth and detailed cuts as well as for the production of stylish furniture. They are also suitable for milling grooves on picture frames, panels, 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, beneficial to pull out, punching is more efficient. INCLUDE LIST Scope of delivery: 1 x T-slot cutter for 1 or 2" hex screws 1 x T-slot cutter for 3 or 8" hex screws 1 x T-Slot Cutter for 5 or 16" Hex Screws. Note: The data is manual measurement, please allow 1-8cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.