... 0.36 * 16mm 0.5 * 16mm 0.5 * 12.7mm 0.5 * 19mm 0.6 * 16mm 0.6 * 19mm 0.7 * 19mm 0.8 * 19mm 0.8 * 32mm 0.9 * 19mm 0 ... specifications comparison table:BWG28 × 3/8", 1/2", 5/8"(0.36mm × 9.5mm, 12.7mm, 16mm)BWG27 × 3/8", 1 ... × 12.7mm, 16mm, 19mm)BWG22 × 3/4", 1", 5/4"(0.70mm × 19mm, 25.4mm, 32mm)BWG21 × 3/4", 1", 5 ... /4"(0.80mm × 19mm, 25.4mm, 32mm)BWG20 × 3/4", 1", 5 ...