SIZE: Suitable for 1/4 shank (6.35mm) hand drills and power drills. Cutting diameter length: 7.93/9.52/12.7mm. APPLICATION: These 1/4 end mills are suitable for solid wood panels, MDF, chipboard, design profiles, for smooth and careful cuts and for furniture making with style. They are also suitable for milling grooves on frames, panels, clocks, pylons and other wall tools to make keyhole hangers or grooves for cables. FEATURES: The hard alloy blade has high-quality welds. Stable quality and high performance, without that you have to worry about breakage and tilt problems during your work. The blade is sharp and durable, has an arc curve design, is advantageous to remove and punching is more efficient. CONTENTS LIST: Package Included: 1 x T-slot countersink for 1/2" hex screws; 1 x T -Slot countersink for 3/8" hex screws; 1 x T-slot cutter for 5/16" hex screws. Product description T-slot cutter for milling T-slots, suitable for metric hex screws or slotted nuts. A variety of