Faithfull Plug Cutters are used in combination with screwsinks to prepare perfectly sized plugs to fill counterbored holes. For best performance, the power drill should be held in a stand. For a perfect grain match use an offcut from the timber being plugged. To ensure an accurate fit we suggest you use the same screwsink from the Faithfull brand. The set of 4 contains sizes No 6, 8, 10 and 12.Set of Four - Cuts size 6 (7mm), 8 (8mm), 10 (10mm) and 12 (11.5mm) PlugsAdditional Information:• Plug Type: Plug Cutter