HARFINGTON 2pcs 14mm Drill Stop Collar Set Depth Stop, Adjustable Stainless Steel Drilling Limit Ring, Anodizing Surface Dowel Shaft Chuck Positioner with Hex Wrench, Silver

["Size - This 14mm (35/64 inch) drill stop fits for drill bits diameter 14mm (35/64 inch), can help to drill extremely precise and uniform depth holes at your desired depth.","Consistent and Accurate Drilling Depth - This drill bit stop collar is primarily used for fixed limit drilling depth, ensuring accurate drilling every time. The screw-type collar design allows for easy installation without damaging the bit.","Adjustable Collar - Featuring a double-hole design, our drill stop provides enhanced clamping force compared to single-hole designs. It enables drilling holes to precise depths while preventing both under-drilling and over-drilling.","Easy to Use - Drill bit stopper works well with twist bit, brad-point bit, masonry drill, rivet drill, and woodworking bits, making it suitable for drilling wood, plastic, wall, and other materials.","Wide Applications - Suitable for use on machinery shaft instruments or woodworking tools, this drill stop acts as a reliable bit limit ring. It provides flexibility and convenience for different drilling projects."]