Some folks have asked for a smaller square drive socket for their NSRC. Below is a reducer insert that snaps into the four-inch square and reduces it to three inches square. Handy for bowls with a smaller base. There is no need to use different spoil boards unless you just want to. Non-Slip Ring Chuck is not included. Fits both 12” and 16” models.

2-pack

Name: 4to3 inch Non-Slip Ring Chuck Reducer Insert 2-pack
Brand: Ron Brown's Best
SKU: Non-Slip Ring Chuck Reducer Insert
Price: 14.44 USD
Availability: InStock