- 2 in 1 Drill Tap SetSpecial Price £216.00 £259.20 Regular Price £324.822 in 1 Drill Tap M12 x 1.75 with 3/4" Weldon ShankSpecial Price £55.89 £67.072 in 1 Drill Tap M16 x 2.0 with 3/4" Weldon ShankSpecial Price £65.13 £78.162 in 1 Drill Tap M20 x 2.5 with 3/4" Weldon ShankSpecial Price £69.78 £83.742 in 1 Drill Tap M24 x 3.0 with 3/4" Weldon ShankSpecial Price £79.54 £95.45