1/4-20 MODIFIED BOTTOM HY-PRO AL TAP1/4-20 MODIFIED BOTTOM HY-PRO AL TAP 29550, H3 THREAD LIMIT, 2-FLUTE, BRIGHT, 50-DEGREE HELIX 2-1/2" Overall Length, 1" Thread Length, .255" Shank Diameter, #7 is the recommended drill size. OSG has made this tap specifically for aluminum alloys and die cast aluminum in blind hole situations. It is considered a modified bottoming style tap and the threads are chamfered back 2-1/3 to 3 threads. Featuring a bright surface and 50-degree helix, it allows for smooth chip evacuation, even in deeper hole applications. Made for 6061, 7075 and 2011 Aluminum Alloys, in addition 356AL and 390AL Die Cast Aluminum, it will excel in any similar materials. This tap will also perform well in magnesium, brass, cooper and beryilium cooper. Many other styles of aluminum taps are available including roll forming and thread mills, ask you salesperson for details!
Tools & Instruments Taps Punches & Dies Irwin Hanson Cut Thread Taps - OSG29550-00 - 1/4-20 MODIFIED BOTTOM HY-PRO AL TAP
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