Used to extend threaded drill bits, pilot cutters, or any other cutter with a 1/4-28 thread. Has a 1/4" Hex Drive on the shank end to fit a drill or screwdriver, and a 1/4-28 internal (female) thread at the other. 4" extension length.
Size #21. 6" working length. Drill bushing type (most commonly ordered series) for drilling duplicate matching holes in overlapping sheets. Drill Guide Duplicators lets you drill directly by using the duplicator as a drill guide.
Accurate, versatile tool for drilling perfect right angle or variable angled holes on tubing, pipes or flat shapes. Lightweight, portable, use on any (1/4" or 3/8") air or electric drill. Has 5 degree graduations (0 - 45 degree left or right).
Allows you to extend the length of your threaded drill bits, or pilot cutters to reach into recessed areas. One end is threaded male 1/4"-28 to fit into your Angle Drill, and the other has a 1/4"-28 female to accept the bit. 7" Working Length.
Size: 3/16". Deburrs the front, back or both sides of a hole in one pass. Works with any drill. Adjusts easily by turning a set screw in the shank to control the depth of cut.