The CMT 541.001.00 Stop Collar for 1/4" Shanks is a precision accessory designed to work with top bearing router bits and other 1/4" shank bits used in routers, drill presses, and CNC routing machines. By clamping firmly onto the shank, this stop collar lets woodworkers set a consistent, repeatable depth of cut and prevents the bit from being pulled through the collet or chuck under load - delivering safer, more accurate results on every pass through wood and woodworking materials.

Key Features

• Designed for top bearing bits - purpose-built compatibility means the collar seats correctly without interfering with the bearing or cutting geometry, giving you clean, reliable performance.
• 6.35 mm bore diameter fits 1/4" shanks - a precision-sized bore ensures a secure, wobble-free fit on standard 1/4" router bit and drill bit shanks, maintaining accuracy throughout the cut.
• Depth of cut control - limits how far the bit can travel into the workpiece, so you can repeat the same cut depth across multiple pieces without re-measuring every time.
• Prevents bit pullout - keeps the bit anchored in the collet or chuck even under the stress of routing or drilling, reducing the risk of slipping, workpiece damage, or injury.

Why This Product

• If you run top bearing router bits and need reliable depth repeatability across a production run or multi-step woodworking project, this collar locks in your setting so every cut matches the last.
• The 6.35 mm bore is sized precisely for 1/4" shanks - no adapters, no shimming, no improvising - making this a clean, direct-fit solution for routers, drill presses, and CNC routing machines.
• Bit pullout during routing is a genuine safety and quality concern; this collar adds a physical stop that keeps the bit in position even under the lateral and axial forces of demanding cuts through hardwood and other woodworking materials.
• A small, purpose-made accessory that eliminates the need for repeated depth gauge checks, helping you work faster and with greater confidence on repetitive routing or drilling tasks.

Specifications

• Manufacturer Part Number: 541.001.00
• Brand: CMT Orange Tools
• Product Type: Stop Collar
• Compatible Shank: 1/4"
• Bore Diameter: 6.35 mm

Approved Applications

• Setting a repeatable depth of cut on routers, drill presses, and CNC routing machines
• Preventing bit pullout through the collet or chuck under load
• Use with top bearing router bits on all woodworking materials