Not sure if it’s wedge or piston operated… Will fit a lathes swing. Aloris site says lathes CXA 13″ to 18″ with 3″ block height and 3″ block width 3. Armstrong QC-5 Quick Change Tool Post, block height and 3″ block width 3″. Armstrong Heavy duty boring bar holder #5G1 QC, inside diameter… Armstrong Cut off tool holder #5D QC, has grind marks….. No Name Bit holder – has grind marks.. T – slot is 21/4″ x 3/4″ x 1/2″ x 3/8″ see pic. The item “Armstrong QC-5 QUICK CHANGE TOOL POST With3 Holders CXA Series” is in sale since Tuesday, June 8, 2021. This item is in the category “Business & Industrial\CNC, Metalworking & Manufacturing\Workholding & Toolholding\Toolholding\Quick Change Tool Post”. The seller is “oldholdsold50″ and is located in Bridgton, Maine. This item can be shipped to United States.

• Brand: Armstrong
• Tool Post Type: Quick Change Tool Post