CXA #4 QUICK CHANGE BORING BAR TOOL POST 250-304. For use with CXA tool posts 250-300 or 250-333. Equipped with a split bushing to accommodate a boring bar of smaller diameter. Holds 3/4″ tool with bushing, 1″ diameter without bushing. Interchangeable with Dorian, Aloris, & Phase II CXA series tool posts. While we guarantee your satisfaction, these especially work best with our matching tool posts. Precision ground and hardened. Completely sealed for maintenance free operation. The Product Has Passed Strict Quality Testing. Durable And Easy To Install And Replace. 5 Pack CXA #4 250-304 Heavy Duty Quick Change Tool Post Boring Bar Holder 13-18. Cost-effective, Good After-sales Service. Quality Assurance For Your Peace Of Mind. 5 PCS QUICK CHANGE BORING BAR TOOL POST Holder CXA #4 250-304 Heavy Duty For Lathe. Pls check your old picture or model when you order it. Sorry for any inconvenience caused. Thank you for your understanding. Quick Change Tool Post. Please give us the opportunity to resolve any problem. We understand the concerns and frustrations you might have, and will try our best to resolve the issues. We care about our valued customers, and will always try to help you. 4″ /5″ /6″ /8″ Bench Vise W/ Anvil Swivel Base Heavy Duty Vice Multipurpose. 100 Pack 4-1/2×7/8” 40 Grit T29 Premium Zirconia Flap Disc Sanding Grinding. ER11/ER16/ER20/ER25/ER32/ER40 Spring Collet Set For CNC Milling Lathe Machine. 3 HP SPL 3450RPM Electric Motor 56 Frame 1 Phase 115-230V 5/8 Shaft. 4 Piece 4 Inch Heavy Duty Caster Set Wheels Fits For All Swivel & Brake Casters. Worm Gear Motor with Speed Controller 35RPM CW/CCW 1:40 Ratio 180W 110V. RV040 Worm Gear Motor 12RPM 1:100 Ratio 180W 110V with Speed Controller 18mm. Replacement Rebuild Repair Kit For Zodiac Polaris Automatic Pool Cleaner 180 280. Worm Gear Motor with Speed Controller 120W 110V 80K 18RPM CW/CCW 14mm Shaft. RV40 Worm Gear Reducer 20:1 Ratio for Nema34 Stepper Motors Metal Gearhead. Metal Cut Off Wheels. Engines & Engine Parts.