Lathe tools designed for making holes or refining holes, such as drills and taps, must be secured differently than any other turning tool, so Tormach offers ER20 and ER16 collet chucks. Both made of alloy steel, these tool holders provide the rigidity needed for holemaking.
The ER16 Collet Chuck is a 3/4" straight shank with weldon flat for lathe work
The ER20 Collet Chuck is a 3/4" straight shank with weldon flat for lathe work
The ER11M x 3/4" Collet Chuck fits all ER11 collets