Bevel Prep Disc

A preparation coming off a bevelling machine is not always ready to weld: burr at the root, oxide left from the earlier cut, or tack marks may still be sitting on the face. The Bevel Prep Disc handles that intermediate step. There are three choices to make. First diameter: 115 mm suits smaller grinders and tight access, while 125 mm covers more surface per pass. Second, body form. The flat T27 gives even contact when the disc is worked at a shallow angle to the surface; the conical T29 keeps full-face contact when the disc is held at a steeper angle. On the sloped face of a weld preparation that difference shows up directly in contact area and disc life. Third, grit. P40 cuts coarser and clears burr, oxide and tack remains quickly; P60 removes less and leaves a smoother face for welding. In practice the rough clean-up is P40 and the finishing pass is P60. All eight codes are the same function in different diameter, form and grit combinations, and holding one coarse and one fine line per diameter covers most site work.