3/8″ Tasche-Loch-Fräser – 3/8″ Schaft – Whiteside RU4000H (AstraHP beschichtet)

I was really impressed by how cleanly this bit cut through some dense oak—the AstraHP coating definitely seems to make a difference in reducing heat buildup. The 3/8-inch shank fit perfectly in my router collet with no wobble, and the pocket holes came out precise every time.

The AstraHP coating on this bit really helps the chips slide out cleanly instead of gumming up in the pocket. I noticed it leaves noticeably smoother walls than my old uncoated bit, even in maple.

I’ve used it on a few pine and oak projects, and the 3/8″ cutting diameter leaves pocket holes that are clean and square every time. The AstraHP coating seems to keep the bit from gumming up, even with some lighter woods. It’s been a solid upgrade from my old bit.