BSC Tools

Workshop 3-Way Donut Hex Wrench 4,5,6mm

BSC Tools Workshop 3-Way Donut Hex Wrench 4/5/6mm is a shop-ready 3-way Allen key built for fast, repeatable adjustments on the most common bike fastener sizes. The donut-style body gives a secure grip and efficient hand positioning for snugging stems, seatposts, brake levers, and many other cockpit and accessory bolts without constantly swapping individual L-keys.

• 4/5/6mm hex sizes - Covers core bicycle hardware sizes for everyday setup, fit adjustments, and on-the-fly torque checks
• 3-way “donut” layout - Speeds up service by keeping three frequently used Allen sizes in one compact tool
• Removable 75mm bits - Allows straightforward bit replacement and customization when a worn tip needs to be refreshed
• Shop-quality construction - Built to hold up to frequent workshop use and repeated fastener engagement
• Center hanging hole - Makes it easy to store on a tool board for quick access and a cleaner bench