3.2, 4.0, 6.4, 7.1 ,7.9 ,9.5 ,10.3 ,11.3 ,12.7 ,14.3 ,15.1 ,15.9 ,17.5 ,19.1mm 

Price:  £44.50 Excluding VAT at 17.5%
£52.29 Including VAT at 17.5%

27.6, 30.8, 37.1, 43.5, 49.8mm - also includes wooden stand. 

Price:  £46.60 Excluding VAT at 17.5%
£54.76 Including VAT at 17.5%

1"(25.4), 15/16", 7/8"(22.2), 13/16"(20.6), 25/32"(19.8), 3/4"(19.1), 23/32"(18.3), 11/16"(17.5), 5/8"(15.9), 19/32"(15.1), 9/16"(14.3), 1/2"(12.7) (mm) - also includes wooden stand. 

Price:  £23.50 Excluding VAT at 17.5%
£27.61 Including VAT at 17.5%

1"(25.4), 15/16"(23.8), 7/8"(22.2), 13/16"(20.7), 25/32"(19.8), 3/4"(19), 23/32"(18.3), 11/16"(17.5), 5/8"(15.9), 19/32"(15), 1/2("12.7), 15/32"(11.9), 7/16"(11.1), 13.32"(10.3), 3/8"(9.5), 5/16"(7.9), 9.32"(7.1), 1/4"(6.4), 7/32"(5.6), 5/32"(4), 9/64"(3.5), 1/8"(3.2), 7/64"(2.8) (mm) - also includes wooden stand 

Price:  £55.75 Excluding VAT at 17.5%
£65.51 Including VAT at 17.5%