محمل بت قاطع مصغر 0.490″ × قطر داخلي 3/16″ – Whiteside B3U

Went through a whole pack of these on one job and every single one measured dead-on 0.490 inches. The 3/16-inch bore sits snug on the arbor with zero wobble, so my edge work stayed perfectly clean.

I was pleasantly surprised by how precisely this bearing fits my Whiteside bit—the 0.490-inch diameter made all the difference. The inner hole was spot-on, and the whole thing spins smoothly without any wobble. Definitely saved me from having to buy a whole new bit.

It’s reassuring to have a backup bearing that fits snugly and spins without wobble—the 0.490″ OD is noticeably tighter than the stock one, which solved my bit’s vibration issue. Shipping was quick, and I’m glad I grabbed a spare for the shop.