uxcell 20pcs Set Screw Collars 3mm Bore Shaft Collars, 8mm OD, 7mm Width, Drill Stop Collar, Stainless Steel Drill Bits Depth Collars

Durable Construction: Made of stainless steel, high strength, strong locking force, anti-corrosion, and durability. Round bore collars are commonly used as positioners, spacers, stops, and bearing surfaces.Secure Shaft Attachment: Set screw collars are designed with a threaded hole and a set screw that tightens against the shaft, ensuring a secure attachment. This feature prevents slippage or movement of components during operation.Adjustable Positioning: These set screw collars adjust quickly and easily at any point on the drill bit slot, helping drill holes to the precise depth and preventing under and over-drilling.Versatile Applications: Widely used across different industries, including automotive, 3D printers, and RC airplane models. They can be used in various equipment and machinery to secure gears, pulleys, sprockets, or other components onto shafts.Easy Installation: These collars are easy to install on the shaft. Simply slide the collar onto the desired position and tighten the set screw using a compatible hex wrench. No additional tools or disassembly of other components are required.