4 Faithfull Screwsink set

Faithfull Screwsink set (4) - Set Screws -. Used for drilling, countersinking and counter-boring in one operation 。 The countersinking part can be slid up and down the drill part of the tool by means of a hexagon key to suit the depth of hole being drilled 。 To ensure an accurate fit we suggest you use the corresponding plug cutter from the faithful range 。