{"product_id":"three-way-wrench-2-2-5-3mm-straight-tip-hex","title":"Three-Way Wrench 2, 2.5, 3mm Straight Tip Hex","description":"\u003cp\u003eDerailleur limit screws. Bar-end plug screws. The small grub screws on a shifter clamp that hold the index ring in place. The size cluster that lives at the small end of a typical bike's fastener spectrum, on a single Y-handle that puts each size on its own dedicated arm.\u003c\/p\u003e\n\u003cp\u003eThe 2, 2.5, and 3 mm hex sizes are the ones that round most easily when you reach for the wrong driver: a 2.5 mm in a 3 mm recess feels almost-right, then turns the bolt into a slot under load. A dedicated three-arm Y-handle keeps each size separated and immediately findable, so the right driver is always one quarter-turn of the tool away.\u003c\/p\u003e\n\u003cp\u003eThe shanks are chrome-vanadium steel, hardened and tempered. Tips are black-oxide treated for corrosion resistance and a tight fit into the hex recess; on these small sizes especially, a clean tip-to-recess fit is what stops the bolt from rounding under shop torque. The glass-fibre-reinforced polypropylene handle is balanced so the unused arms don't fight you while you spin the third.\u003c\/p\u003e\n\u003ch2\u003eWhat it's for\u003c\/h2\u003e\n\u003cp\u003e2 mm is the size for derailleur limit screws on most current Shimano and SRAM mechanical groupsets, plus the grub screws on some shifter index assemblies. 2.5 mm covers disc-brake caliper banjo bolts on some hydraulic systems and the smaller bolts on shifter clamps and saddle-rail clamps. 3 mm shows up on older shifter and brake-lever pinch bolts, plus the small fasteners that hold bar-end plugs in some grip designs. Together, these three sizes cover the fasteners on a bike where light, precise driver fit matters more than torque.\u003c\/p\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2, 2.5, 3 mm straight-tip hex sizes on a three-arm Y-handle\u003c\/li\u003e\n\u003cli\u003eChrome-vanadium steel shanks, hardened and tempered\u003c\/li\u003e\n\u003cli\u003eBlack-oxide tip treatment for corrosion resistance and recess fit\u003c\/li\u003e\n\u003cli\u003eTrivalent chrome plating to ISO 1456:2009 on the non-tip shank surfaces\u003c\/li\u003e\n\u003cli\u003eGlass-fibre-reinforced polypropylene handle\u003c\/li\u003e\n\u003cli\u003eHex keys manufactured to the ISO 2936 dimensional standard for metric hex keys\u003c\/li\u003e\n\u003cli\u003eManufactured in Slovenia\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBuilt in Zreče, Slovenia\u003c\/h2\u003e\n\u003cp\u003eUnior has been forging hand tools in Zreče since 1919, and sponsors professional road and mountain-bike race teams. The small-size cluster gets the same chrome-vanadium shank and black-oxide tip as the larger Y-handles in the line; the construction doesn't drop off for the small sizes the way it does on some kit-bundled hex sets, where the smaller tools are stamped from softer steel to keep cost down.\u003c\/p\u003e\n\u003ch2\u003ePro tip from our mechanics\u003c\/h2\u003e\n\u003cp\u003eThe small sizes are where worn drivers do the most damage. A 2 mm tip that's been used for years on misaligned engagements develops worn flats, then rounds a fresh grub screw on first contact. If you notice the fit feels loose, replace the driver; these sizes are cheap enough that there's no reason to fight a worn one.\u003c\/p\u003e\n\u003cp\u003eFor the rest of the metric hex span (4, 5, 6, 8, 10 mm) and how to decide between Y-handle, T-handle, and L-key formats for the bolts a typical bike presents: \u003ca href=\"\/blogs\/tech-tips\/hex-and-torx-wrenches-how-to-pick\"\u003eHex and Torx wrenches: how to pick the right tool for the job →\u003c\/a\u003e.\u003c\/p\u003e","brand":"Unior","offers":[{"title":"2, 2.5, 3mm Straight-tip Hex","offer_id":44140759056428,"sku":"624908","price":15.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/5786\/5260\/files\/Three-Way_Wrench_2_2.5_3mm_Straight_Tip_Hex.jpg?v=1780949344","url":"https:\/\/uniorusa.com\/products\/three-way-wrench-2-2-5-3mm-straight-tip-hex","provider":"Unior USA","version":"1.0","type":"link"}