An adjustable, heavy-duty, revolving depth-stop with a strong thrust ball bearing suitable for quick and easy adjustment of the countersink depth without scratching or burning surfaces. It also has an open space to allow suitable for chip evacuation. The user friendly design enables control of the drill length and its replacement, without the need to disassemble the depth-stop. Enables users to drill a pilot hole and tapered Countersink in . Adjustable Depth-Stop: Features a heavy-duty, adjustable, revolving depth-stop with a strong thrust ball bearing suitable for quick and easy adjustments. Efficient Design: Designed with an open space suitable for chip evacuation and enables users to drill a pilot hole and tapered countersink in . Specification Detail Cutting Angle 82 Degrees (A) Angle 49 (B) Cutting Height 3/64 inch-3/8 inch (D) Diameter 3/8 inch (D) Shank 1/4 inch Hex Shank (L) Overall Length 2 inch-5/8 inch Colour:As shown Material:Metal Due to different product batches, the appearance , which does not affect the use Package Contents: 1 set x Countersink Drill Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.