Rockler Box Joint Cauls 4pk 6.35mm (1/4")

ManoMano

Creates a tight fit quickly and easily and features evenly-spaced pressure points to clamp box joint fingers at the corners for maximum tightness. Cauls only apply pressure on the fingers that need it. Slots on the outside of the cauls are made to hold pennies in place to firmly support band clamps at varying heights and can be used with Rockler 25mm (1'') x 4.5m (15') Band Clamp (sold separately). - 6.35mm (1/4")

Zoro Tools

Creates a tight fit quickly and easily and features evenly-spaced pressure points to clamp box joint fingers at the corners for maximum tightness. Cauls only apply pressure on the fingers that need it. Slots on the outside of the cauls are made to hold pennies in place to firmly support band clamps at varying heights and can be used with Rockler 25mm (1) x 4.5m (15) Band Clamp (sold separately) .

Amazon

Clamping cauls apply pressure strategically, only where needed Evenly-spaced pressure points clamp box joint fingers at corners for extra tightness Use caul slot pennies to firmly support band clamps at varying heights Makes clamping box joint fast, accurate and secure Compatible with Rockler 25 mm (1'') x 4.5m (15'') Band Clamp (sold separately), Weight: 0.66 pounds, Manufacturer: Rockler