●【Specs】Cutting Dia.1/4",5/16",3/8",1/2",Shank Dia. 1/4"(Become 1/2" with router collet),Cutting Length:13/16",1-1/16",1-3/16",1-7/32". Top bearing flush trim router bits set with 1/4” To 1/2” Collet. ●【High Quality】Sharp YG8 tipped bit, hardness up to 89, cutting faster life longer. The shank is made of 45 carbide steel, anti-kickback design and CNC balance. ●【Like Cutting Butter】Thanks to the high quality blade the router bit maintains a perfect balance for a smooth cut and clean surface. ●【Widely Use】Perfect for solid woods, laminate, plywood compact panel, acrylic etc. *Do NOT cut metal or other non-wood materials. ●【Applicable】Suitable for all major Universal 1/4" Shank and 1/2"(Use router collet) table mount and handheld router.