POWERTEC Drill Bit Stop Collar Set, 7 Piece Set Adjustable Drill Bit Depth Stopper with Allen Wrench, Bits Stop with Imperial System Size Markings - 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.