A Mount Semi Machined Steel Adapter For 10 Inch Chucks A2 8 Mount Back Plate For 3 Jaw Chucks Semi Finished Back Plate For Universal Chucks Concentricity Tested Ready To Mount Heavy Duty Precision

Single 10 in (254 mm) A2-8 back plate for 3-jaw chucks
✔️ Semi-finished universal chuck adapter, ready to mount

The 10 in (254 mm) A2-8 back plate is a semi-finished mount used with 3-jaw chucks on lathes and other turning machines. It's designed to accept plain-back chucks when properly machined to ensure concentricity and accurate work. Made from high grade casting steel for durability and rigidity.

✅ 10 in (254 mm) A2-8 mount back plate for 3-jaw chucks
✅ Semi-finished back plate for universal chucks
✅ Made of high grade casting steel
✅ Concentricity tested; ready to mount on heavy duty precision setups

💡 What is a back plate for a chuck and why do I need one for 10 inch chucks?

Back plates provide a precise interface between the chuck and spindle, stabilizing mounting and reducing runout in turning operations.

• Helps ensure concentricity between chuck and workpiece
• Important for universal or plain-back chucks on 10 in setups
• Improves rigidity in CNC lathes and manual machines
• Requires machining for plain-back chucks to achieve true alignment

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