【SIZE】 Suitable for 5/16 (8mm) shank hand drills, holder motor drive drills. cutting diameter length: 7.93 / 9.52 / 12.7mm. 【MATERIAL】 This product uses YG6 hard alloy with sharp edge, high hardness, precise positioning, smooth cutting and impact resistance. 【APPLICATION】 These 1/4 shank milling cutters are suitable for solid wood panels, MDF, chipboard, design profiles, for smooth and precise cutting as well as for the production of stylish furniture. They are also suitable for milling grooves on 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, advantageous to remove, perforation is more efficient. 【INCLUDE LIST】 Package Content: 1 x T-Slot Cutter for 1/2" Hex Screws; 1 x T-Slot Cutter for 3/8"