- 1111 Spring - 1273 Handle knob – 1447 Gauge block depth 3/8" - 1448 Gauge block depth 3/4" - 1449 Gauge block depth 5/16" - 1685 10" solid shaft - 1849 Insulated contact pin - 496 Insulated contact pin - 631 Contact pin chuck - 632 Retainer - 633 Insulation block - 643C Cable assembly - L183 Fibre Washer - L285 Set screw - L319 Plastic washer