I bought this for a CNC router. I measured all my end mills before using them and this one came in just under the advertised 1/4". This is not a problem for me, as I always enter the actual diameter of the end mill in my CAM program. I've never found an end mill that exactly meets advertised specs, but I don't buy end mills for more than $100 because the software corrects for diameter inaccuracies for what I do. This end mill works great with hardwoods and plywood. I prefer the straight groove type for wood because I don't have breaks and it leaves a nice clean finish. It is also great for cutting HDPE plastic.
Premium Tongue & Groove Milling π§ Cutting Tools by KOWOOD: Precision and Performance Unleashed
10 Review
Universal tool set 151 items 1/2" -1/4" BG151-1214
28 Review
Wi-Fi router Keenetic Extra (KN-1713), white/grey
19 Review
High-Performance Whiteside Router Bits UD2102 Compression for Precise Woodworking
10 Review