Sealey Titanium Coated Hexagonal Tap & Die Set 26pc AK3026M3 to M12 high quality titanium coated taps and dies. Features hex shaped dies providing a more secure fit in the die holder. Dies can also be used with a socket or spanner. Supplied in storage case. M3 to M12 high quality titanium coated taps and dies. Features hex shaped dies providing a more secure fit in the die holder. Dies can also be used with a socket or spanner. Taps & Dies; M3 x 0. 5, M4 x 0. 7, M5 x 0. 8, M6 x 1, M8 x 1, M8 x 1. 25, M10 x