1.Better Control: Fast and accurate drilling for precise control of drilling depth; this allows for faster and more accurate drilling, as the drill is equipped with a quick adjustment mechanism 2.Allows Consistent and Accurate Hole Depth: Allows consistent and accurate hole depth every time, providing precise control of drilling depth which can be fixed in different positions with the adjustable inner diameter of the depth limite 3.Thus Maintains Drill Quality: By featuring a nylon inner ring, the Drill Stop has a secure locking mechanism that prevents any looseness or wear in the locking area 4.Excellent Aid for Drilling Tasks: Its ability to control and standardize drilling depth ensures increased drilling efficiency, making it an excellent aid for drilling tasks and a tool for any carpentry project 5.Excellent Grip: With a non-slip texture and sturdy aluminum alloy outer ring, Drill Stop ensures manual tightening is effortless and practical on any surfaces, providing a secure grip and durability you can rely on Colour:black Material:alloy Package Contents: 10 x Conical Drill Bits Limiter 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.