Replacement Parts › 1/4 - 1/8 Collet Reducer Bushing Image 1 of 1 1/4 - 1/8 Collet Reducer Bushing $10.00 The 1/4 - 1/8 Collet reducer allows you to use 1/8" (.125) Shank bits in your Digital Wood Carver Router. Purchase Added! The 1/4 - 1/8 Collet reducer allows you to use 1/8" (.125) Shank bits in your Digital Wood Carver Router. Related Products DWC2440 Power Button Switch $22.99 DWC2440 Jog Control Pendant $75.00 4 Channel Relay Module $22.00 DWC Main Relay $24.99 E-Stop Switch $27.99