It's my 1st bit from spetools, and I'm very impressed by the quality. I've since bought another tapered ball nose and very pleased with that too. Delivery and communication was quick.
The quality of all the parts is excellent - the extruded aluminum rails are very strong! The instructions are a bit hazy so I used YouTube video to set it up in about 10 minutes (minus drilling a router plate). I was stunned at how easily the wheels allowed the sled to move! I would like to get a second pair of the clamps that hold the base to the rail as the torque of the router (2.5hp on lowest rpm) twists the base. I did not buy the dust collector, but I attached brush material to the rails and that seems to work pretty good when taking small 'bites' of material. I personally think this is the BEST VALUE on the market for slab flattening!
I am a pro cnc operator and these bits are as good as any I have bought. Probably better.
Item received as ordered on time as promised. Will order from Spe Tools again.
Very nice bit alowws very fast cutting