Amana Tool Industrial quality Carbide Tipped laminate trim bits with the Euro square bearings. The bits are designed according to specifications with a slight taper allowing for adjustment up or down on the work edge to finish off the edge with a smooth and burr free cut. The square bearing is manufactured with a strong Non-Stick Teflon which won't mark your edge so it can be wiped clean easily, #47149, diameter (D) 3/4, cutting height (B) 5/8, shank (D) 1/2, overall length (L) 2-5/8, replacement bearing Sqb102, flutes 2, 47149 carbide Tipped laminate Trimmer with Euro square bearing 3/4 dia x 5/8 x 1/2 inch shank router bit