Trend Snappy 4.75mm x 12.7mm TCT Counterbore - to recess screws for plugging|12/7mm diameter TCT counterbore to drill precision recess to hide screws below the surface when used with matching plug cutter.|Ideal for screws up to 12 gauge Imperial sizes|Used in conjunction with the Trend Snappy SNAP/PC/127T or SNAP/PC/12 Plug Cutters, fixings can be hidden with an almost invisible plug for a high quality, professional finish.|4.75mm diameter drill allows for pilot/screw clearance to prevent splitting and to ensure accurate, consistent alignment. |Drill depth can be altered to suit material thickness and is easily replaceable if it becomes damaged. |TCT cutting faces can be resharpened ensuring a long lifespan and assured performance in all timbers and abrasive timber based materials including ply, MDF and chipboard.