1/4" shank x 1/4" cut dia. x 2-1/2" over all length x 7/8" cut length EXTENDED WEAR Compression spiral router bit.
This compression router bit is made out of a superior carbide that lasts significantly longer when cutting laminates or other abrasive materials. It costs a little bit more to cover the price of the special carbide, but for many of our customers, they think it's worth it. The carbide rod is dyed blue upon arrival at our shop, to make sure we don't get them mixed up with the regular rod.
If you are wanting a bit that lasts longer, this is it.