Trend C213AX1/4TC Weatherseal groover 3mm x 7mm Bearing Guided Weatherseals RecesserTwo fluted tungsten carbide weatherseal groover for use on natural timbers and manmade boards. The cutter is non stick coated to reduce resin build up.For use with smaller routers where application allows.Neatly cuts grooves on doors or frames to accept a weatherseal.Groove can be positioned in bottom of a rebate.Specification-D=34 mmC=3 mmOL=55.5 mmB=20 mmShank Diameter=1/4 inch