Kreg KMS7520 Track Clamp, Plastic/SteelThese easy to use clamps lock into place on the underside of the Accu Cut track and starting block to offer additional holding power when needed, such as when working with slick surfaced sheet goods such as melamine coated particle board, or when cutting with a single length of track. The clamps are also suitable for use with the Adaptive Cutting System Guide track by sliding them onto the underside of the track where additional holding power may be