Amana Tool 47729 Ultra-Glide High Performance Ball Bearing 5/16 Overall D

Using the same quality standards as our regular steel bearings, these Ultra-Glideニ_ニ_ bearing assemblies feature satin-smooth Delrinニ_ sleeves. Delrinニ_ is an industrial synthetic plastic material similar to nylon, and will leave no marks on the material being cut. Applications include solid-surface materials such as Gibraltarニ_, Corianニ_, Surellニ_ & Fountainheadニ_. etc.; Plexiglasニ_ & other clear acrylics; and plastic laminates. Not recommended for regular wood applications due to a higher wear factor.