1 5 PIECE MULTIFIX QUICK CHANGE TOOLPOST SET. Lathe 40 Position Quick Change Tool Post size A1. (Some manufacturers and dealers call this model size A). Can be used on BV20, SINO210V, D240, CQ6125 bench lathe which turning diameter is from 150 to 300mm(6″-12″). One set A1 includes: 1 X 540-100 tool post and locking wrench. 3 X turning facing tool holders A1D2090. Can hold 20 MM (20/25″=0.8″) shank turning tool. Will hold tool 8mm to 20mm. 1 X boring turning facing tool holder A1B2090. 1 X Tool Clamping T wrench. The spline of the tool holders are EDM cut, not fine ground. Canada, USA and some European countries like France, Norway, etc. Cam-lock handle rigidity locks & quickly releases the tool holder. Correct height of cutting edge is easily & accurately adjusted by special set screws 3. Tools can be reground without removal form tool holder so the setting remains unaltered 4. 40 different angles are conveniently selected from position dials with marker. Holders are interchangeable with most other brands of 40 position tool post. Tool Post:HRC 50±2 degree after heat-treatment. Toolholder:HRC 42±2 degree after heat-treatment. Ool Holder AD2090 for. Multifix type Quick Change Lathe Tool Post Kit. Will hold tool tip height to 20mm (0.787). 0.75 KG GW. Have sales in Canada, France, US, Norway, New Zealand, etc. Usually our A1D2090 can fit A1 tool post and A multifix tool post as well. It’s made to fit well with Original type A multifix tool post. Can fit A1 tool post and A multifix tool post as well. Basic body and tool holder are made of high-quality steel which is hardened and ground. The tool holder is clamped against the basic body by an eccentric cam system The system allows a repeat accuracy of 0.01 mm with 40 possible angular positions of the tool holder.