Mini Master Notes:

Insert lengths included in kits qty. 10 each of::
Mini Master kit p/n 1203 (1/4-20x.380 / 1/4-20x.500) (5/16-18x.450 / 5/16-18x.620) (3/8-16x.520 / 3/8-16x.750)
Mini Master kit p/n 1204 (1/4-28x.380 / 1/4-28x.500) (5/16-24x.450 / 5/16-24x.620) (3/8-24x.520 / 3/8-24x.750)

Mini Master kit p/n 1201 (M6x1.0x9.4mm / M6x1.0x12mm) (M8x1.25×11.7mm / M8x1.25×16.2mm) (M10x1.5x14mm / M10x1.5x20mm)
Mini Master kit p/n 1202 (M6x1.0x9.4mm / M6x1.0x12mm) (M8x1.25×11.7mm / M8x1.25×16.2mm) (M10x1.25x14mm / M10x1.25x20mm)