A one piece set for producing a lambs tongue sash bar & scribe. The set is initially used for scribing. By adding the rebate block onto the arbor, the set can then be used for profiling. To be used with router in stationary mode. Maximum material thickness = 46mm. specification:. D=35mm. C=22mm. B=22mm. R=3mm. Shank diameter=1/2 inch. spare parts::. Trend profile block for 20/50 tr_sp-20/50a. Trend rebate block fo 20/50 tr_sp-20/50b. Trend arbor for 20/50 cutter set tr_sp-20/50c. Trend bearing 22mm dia x 8mm bore tr_bb 22. Trend spacer set 8mm bore tr_spacer/8.