A-CHA-5 (current lathes- built in 2002 and later with 5/16" motor shafts) or A-CHA-4 (lathes older than 2002 with 1/4" motor shafts)

Current models of BL Lathes refers to models built in 2002 and later. These lathes have 5/16" motor shafts. Older models (including Nos. 1 & 5 High Speed Bench Grinders) have 1/4" motor shafts and were built before 2002. 

Collet Holder on arbor for use on right side of lathe comes with 3/32", 1/8" and 1/4" collets. Also includes allen key, pin and wrench for mounting various size shank mandrels, sanding drums, etc.