[User-Friendly Design]Each collar in the set is distinctly marked with imperial sizes that are to fading, even with regular use. This feature enhances user efficiency by allowing quick and accurate selection, reducing downtime and increasing productivity on the job. [Versatile Application]Suitable for a wide range of drilling tasks, these collars can be used with various drill types including fried dough twists drills, woodworking drills, multi-function drills, and ceramic wall drills. They prevent over-penetration of drill bits, making them essential for work. [ Drilling Control]Featuring a split ring design, these drill stop collars provide meticulous control over drilling depth. This is crucial for tasks requiring consistent and precise hole depths, such as in manufacturing or repetitive drilling operations, ensuring high-quality results every time. [High-Quality Construction]Engineered from robust high-grade steel, this set of drill stop collars guarantees durability and resilience against wear and tear. Ideal for frequent usage, these collars maintain their integrity, ensuring a long-lasting addition to your toolkit. [Comprehensive Set]The package includes a versatile range of collar sizes: 1/8 inch, 3/16 inch, 1/4 inch, 5/16 inch, 3/8 inch, 7/16 inch, 1/2 inch, and 5/8 inch, along with an Allen wrench. This assortment ensures compatibility with different drill models and sizes, catering to diverse drilling needs., Weight: 0.14109584768 Pounds, Manufacturer: Hipzeepo