Axminster Button Jaws (400mm)

Reverse-Chuck Big Bowls Without a Mark

Sized for larger work, the 400 mm Button Jaws grip bowls up to 400 mm (15.75") in diameter using rubber buttons that pull the finished piece gently back against the aluminum jaw plates. With the rim cushioned and the foot exposed, you can clean up the tenon, sign the bottom, or finish the underside without re-marking work you've already finished.

Made from lightweight aluminum to keep the rotating mass low. The rubber buttons cushion the rim and protect the finished surface — they're not suitable for bowls with very fine rims, where wooden jaw plates work better.

Compatible with SK100 and SK114 chucks; bolts directly to the accessory mounting jaws supplied with each chuck. Requires the Long Chuck Key for jaw clearance. Recommended maximum speed: 1,000 rpm. At 400 mm, motor clearance is especially important — verify your lathe motor doesn't obstruct these jaws before ordering.

Key Features

• Up to 400 mm Bowl Capacity: Sized for big bowls and platters where the 250 mm set comes up short.
• Rubber Buttons, Aluminum Plates: Hold a finished bowl by the rim without marking the finished surface.
• Reverse Chucking for Finishing Operations: Clean up the foot, remove a tenon, or sign the bottom without re-marking the rim.
• Lightweight Aluminum Plates: Low rotating mass for cleaner balance.
• Fits SK100 and SK114: Bolts directly to each chuck's supplied mounting jaws — Long Chuck Key required for clearance.
• British Made: Designed and manufactured by NuCo Tools in Axminster, Devon, UK.

See It In Action

In Detail

Same principle as the Button Jaws (250 mm), built for the bigger work — large bowls, platters, oversized vessels. The rubber button faces grip the rim from the outside while the foot stays clear for finishing cuts.

On a 400 mm jaw set, motor clearance and balance matter: stay at or below the 1,000 rpm recommended maximum, and confirm your lathe motor isn't obstructed by the larger jaw arc before mounting.

What's Included

• 1 qty. Set of 400 mm aluminum jaw plates (4 quadrants)
• Rubber buttons
• Mounting hardware

Compatibility

• Compatible Chucks: Axminster Discovery SK100, Axminster Evolution SK114
• Required Accessory: Long Chuck Key (for jaw clearance)
• Mounting: Bolts directly to the accessory mounting jaws supplied with each chuck. No adapter required.
• Recommended Max Speed: 1,000 rpm
• Note: Motor clearance is especially critical at 400 mm — verify your lathe motor doesn't obstruct these jaws before ordering.

Specifications

• Package Dimensions: 27.5 x 22.5 x 6 cm (10.83" x 8.86" x 2.36")
• Package Weight: 3.82 kg (8.4 lbs)
• Country of Origin: United Kingdom
• Warranty: Backed by the Axminster product guarantee. Distributed in the U.S. by TSO Products.

Add to cart and pair with your Axminster chuck for a workholding setup that grows with the work.

Proudly British Made

Designed and manufactured by NuCo Tools in Axminster, Devon, UK. Distributed in the United States by TSO Products.