POWERTEC Drill Bit Stop Collar Kit with Imperial System Size Markings 7 Piece Set Adjustable Depth Allen Wrench 1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2 (71491)

INCLUDES: (7) Drill stop collars in sizes: 1/8", 3/16", 1/4", 5/16", 3/8", 7/16", and 1/2", plus (3) size-matched hex keys—covering the most common bit diameters for precise drilling depth control UPGRADED 3-SCREW DESIGN: Each collar is now equipped with matching size set screw, delivering even clamping force that prevents distortion or collapse, solving common issues found in single-screw designs ACCURATE DEPTH CONTROL: Split ring design allows for precise adjustment of drilling depth, ensuring consistent and accurate hole depths. This feature is invaluable for production work where uniformity and accurate repeated drilling is required. COLLAR MARKED IMPERIAL SIZES: Each collar is designed for quick and easy identification with clearly marked imperial size that does not fade with use. This improves efficiency by helping the user select the appropriate collar size without hesitation. DEPTH CONTROL: Perfect for tasks requiring consistent drilling depths like doweling, cabinetry, joinery, or pocket holes, boosting accuracy and repeatability in every job DURABLE LONG LASTING USE: Crafted from high rigidity carbon steel, these drill stop collars have long term durability and are built to withstand regular use. The secure tightened fit and a non-marring profile will not damage your router bits.