Jaw Set — Big Mouth II Air Chuck

Precision-matched replacement jaw sets for the ATS Big Mouth II air chuck, machined from case-hardened alloy steel with ground gripping serrations that maintain consistent clamping force and workpiece concentricity within 0.001" TIR across thousands of cycles.

• Includes three master jaws and three top tooling jaws pre-matched to a specific chuck diameter
• Eliminates in-shop matching — reduces changeover time to under five minutes
• Ideal for thin-wall parts and near-net forgings in aerospace and automotive applications
• Case-hardened alloy steel with ground gripping serrations for long service life
• Maintains 0.001" TIR concentricity across thousands of production cycles

Pre-matched. Drop-in ready. Back in cut in under five minutes.