Edge Treatment & Grooving Router Bits

Select bits based on material (hardwood, softwood, plywood, MDF), desired profile (roundover, chamfer, ogee, v-groove, straight), shank diameter that matches your router or collet (commonly 1/4" or 1/2"), and cutter material/coating for durability (carbide-tipped is common for longer life)

1/2" shanks provide greater rigidity and less vibration for smoother cuts and longer bit life, especially in large or heavy-duty work; 1/4" shanks are lighter, less expensive, and adequate for lighter-duty trimming and smaller routers

Carbide-tipped bits hold an edge longer and resist heat better, making them preferable for abrasive materials and frequent use; HSS can be cheaper and resharpened more easily but will dull faster, particularly on engineered woods

Keep bits clean and free of pitch and resin by wiping with a solvent after use, avoid dropping or nicking the cutting edges, store them in a dedicated case or rack to prevent contact damage, and periodically check and tighten screws on multi-part bits

Always secure workpieces with clamps, use appropriate router speed and multiple shallow passes for deep cuts, wear eye and hearing protection, and keep hands clear of the bit while the router is running and until it stops completely

Many carbide-tipped bits can be used across hardwood, plywood, and MDF, but expect different wear rates; for abrasive materials or melamine/veneer-faced boards use bits designed to minimize chipping and tear-out

Signs include increased tear-out or burning, need for slower feed rates to maintain cut quality, visible nicks on cutting edges, or a rounded edge profile; small carbide-tipped bits can sometimes be professionally sharpened, but replacement is common for heavily damaged bits