Precision machined, alloy steel taps and dies. Dies are split to facilitate the fine adjustment of core diameter. Set includes imperial coarse and fine sizes, sliding jaw type tap wrench and T-bar type tap wrench together with steel die holder with knurled screws. Supplied in heavy-duty storage case. Features and Benefits • Precision machined, alloy steel taps and dies. • Dies are split to facilitate the fine adjustment of core diameter. • Set includes imperial coarse and fine sizes. • Complete range of Imperial tungsten taps and dies, 1/4" up to 1". • Includes Tap Wrench, T-bar Tap Wrench and Steel Die Wrench. • Supplied in heavy-duty storage case. • Model No. AK303IMP Specifications Model No AK303IMP Brand: Sealey Contents: Taps & Dies; National Fine - 1/4" x 28, 5/16" x 24, 3/8" x 24, 7/16" x 20, 1/2" x 20, 9/16" x 18, 5/8" x 18, 3/4" x 16, 7/8" x 14, 1" x 14, National Coarse - 1/4" x 20, 5/16" x 18, 3/8" x 16, 7/16" x 14, 1/2" x 13, 9/16" x 12, 5/8" x 11, 3/4" x 10, 7/8" x 9, 1"