TC Bur 5/8 x 1/4" EDGE 45° (SK-6) ECS - 5/8" x 1/8", 1/4" Shank with guide bearings Suitable for counterboring and chamfering of defined 45° chamfer angles.047” (+/- ..
But, with a structurally strong steel guard rail those worries can be eased..To put in place simply slide the rail sections into the post saddles. Rigid Tube Post 43.