Diamond Pro Mortar Routing Pin and Dust Guard Starter KitSuitable For Most 115mm and 125mm Angle GrindersPerfect power tool accessory for all repointing, mortar raking and chasing applications.Supplied complete with high-quality Ø 8 mm x 35 mm diamond router for high-speed routing of soft to medium mortar.Fast and efficient removal of mortar and cement joints in brickwork repointing applications and for chasing out channels for the installation of cable, pipes and switchboxes.Precision raking guide to prevent damaging the adjoining bricks.Allows easy and fast raking of horizontal or vertical joints.This guard has been designed for dust removal while routing.