ER hex-nut wrenches have an open-ended design sized specifically to tighten and loosen compatible ER hex collet nuts.

ER spanner-nut wrenches tighten or loosen collet nuts. They include pins sized to fit into the holes or slots in the side or collar of appropriate ER spanner or slotted collet nuts.

ER mini-nut wrenches have pins sized to fit into the holes or slots in the side or collar of ER mini-collet nuts for tightening or loosening.

DA hex nut wrenches have an open end that tightens and loosens compatible DA hex collet nuts.

3J collet wrenches insert and remove 3J collets on the spindle nose of CNC lathes.

5C collet wrenches insert and remove 5C collets on the spindle nose of CNC lathes.

16C collet wrenches insert and remove 16C collets on the spindle nose of CNC lathes.