Regal 010384AS 5/16-24 H7 Bottom Met-Flo Tap Cutting Tools Features Specially designed for malleable materials such as aluminum and brass Eliminates chip disposal problems Ideal for blind holes Lasts up to five times longer than conventional taps Speed may be increased by as much as 200% in most applications Manufacture to Table 302 dimensions and offer DIN/ANSI lengths State-of-the-art design, manufactured on CNC equipment