Amana Tool Ball Bearings with Retainer for Insert Shaper Cutters Option:61654 - Insert Accessory 2-1/2" Dia x 30mm Bore Mortise Compression Spiral Bits feature

Mortise Compression Spiral Bits feature a shorter up shear length than other compression spiral bits

should be replaced immediately

this new blade cuts 2X lumber

high quality finish lumber

Choose the radius

Amana Tool Ball Bearings with Retainer for Insert Shaper Cutters Option:61654 - Insert Accessory 2-1/2" Dia x 30mm Bore Mortise Compression Spiral Bits feature(Ball bearing with retainer.) Designed for template shaping such as arched or cathedral doors, etc. Features a steel ball bearing center and interchangeable, lightweight aluminum rub collar sleeves. To order, specify rub collar (example: #61600, 75mm), and then order the correct size bearing to fit your spindle. The bearing includes a special steel retaining collar that properly secures the assembly to your spindle (3 4," 1," 1 1 4" or 30mm).