Professional tap and die sets for commercial or occasional use Sets consist of both BSF (British standard fine) and BSW (British standard Whitworth) tap and die sets Manufactured from tungsten steel for strength and durability Ideal for creating and repairing popular Whitworth and BSF threads Each set comes complete in their own tin for easy storage and identification Tap and dies are etched with the BSF and Whitworth sizes for easy and fast finding Both sets come with tap wrenches and die holders (the tap wrench has a screw adjustment and is suitable for all the taps, the die holder has an internal diameter of 25mm (1") with thumbscrew to hold components securely in place There is both the taper and plug taps - so ideal for starting new threads / cutting older threads to a perfect finish SET INCLUDES THE FOLLOWING WHITWORTH TAP AND DIES • DIES - 1/8 x 40 BSW, 3/16 x 24 BSW, 1/4 x 20 BSW, 5/16 x 18 BSW, 3/8 x 16 BSW, 7/16 x 14 BSW, 1/2 x 12 BSW • PLUG TAPS - 1/8", 3/16", 1/4", 5/16", 3/8", 7/16" and 1/2" • TAPER TAPS - 1/8", 3/16", 1/4", 5/16", 3/8", 7/16" and 1/2" • 1 x tap and die holder BSF TAP AND DIES • DIES - 3/16 x 32 BSF, 1/4 X 26 BSF, 5/16 x 22 BSF, 3/8 x 20 BSF, 7/16 x 18 BSF, 1/2 x 16 BSF • PLUG TAPS - 3/16 x 32, 1/4 x 26, 5/16 x 22, 3/8 x 20, 7/16 x 18 and 1/2 x 16 • TAPER TAPS - 3/16 x 32, 1/4 x 26, 5/16 x 22, 3/8 x 20, 7/16 x 18 and 1/2 x 16 • 1 x tap and die holder Both come in metal partitioned tins for easy storage and transportation