3/8″ 直線銑刀 x 1″ 刃長 x 1/4″ 柄徑 – Whiteside 1022

The 1-inch cutting depth worked perfectly for my dado slots, leaving almost no sanding needed afterwards. I've used cheaper bits before that chattered, but this one stayed smooth the entire run.

This bit made a really clean groove on my first test cut in oak, and the 1/4-inch shank fit perfectly in my router collet. I was surprised how little tear-out there was.

Installed this bit to template-rout some hinge mortises and the cut came out glass-smooth with zero burning or tear-out. The carbide edges are sharp right out of the box, and the 1/4-inch shank held steady without any chatter.