1/4インチ ラウンドオーバー ルータービット x 1/4インチ シャンク – Whiteside 2001 (AstraHPコーティング)

I’ve used this bit on oak and MDF for a few cabinets now, and the edge it leaves is consistently smooth without any burning, even on the harder grain. The 1/4″ shank fit my trim router perfectly, and the Astra coating seems to be holding up well — no visible wear after a dozen passes. It’s become my

The coating on this bit made a noticeable difference, as the cut stayed smooth and friction-free even on some hard maple. I ran three test passes on a scrap piece and got a glassy finish with zero burning.

I was impressed by how cleanly this bit cut through some hard maple—the AstraHP coating really did seem to reduce heat buildup during the pass. The 1/4-inch shank ran smoothly in my router table, leaving a perfectly roundover edge.