{"product_id":"three-way-wrench-4-5-6mm-straight-tip-hex","title":"Three-Way Wrench 4, 5, 6mm Straight Tip Hex","description":"\u003cp\u003eStem clamps at torque. Seatpost binders the moment the post starts to slip. The medium-hex sizes on a Y-handle when the bolt needs to be tight and the ball-tip format has reached the end of its working range.\u003c\/p\u003e\n\u003cp\u003eThe straight-tip cluster is the finishing tool for the 4, 5, and 6 mm hex sizes. Where a ball-tip wrench engages the recess on a small contact patch and works at angle, a straight-tip drops square into the recess on the full hex flat and transmits torque on the whole working surface. On bolts past about 8 Nm of working torque (most stem face-plates, every seatpost binder we've seen, every crank pinch bolt), the straight-tip is the right tool. Reach for the ball-tip first, switch to straight-tip for the snug-down.\u003c\/p\u003e\n\u003cp\u003eThe shanks are chrome-vanadium steel, hardened and tempered. Tips are black-oxide treated for a clean fit into the hex recess. The glass-fibre-reinforced polypropylene handle is the same geometry as the ball-tip Y-handle in the line, so the two tools feel identical in the hand and the switchover between them is one motion at the bench.\u003c\/p\u003e\n\u003ch2\u003eWhat it's for\u003c\/h2\u003e\n\u003cp\u003e4 mm straight-tip is the right finish for stem face-plate bolts (typically 5 Nm on aluminum bars, lower on carbon depending on the bar's published spec) and brake-lever clamps. 5 mm covers seatpost binder bolts and stem steerer-clamp bolts, both of which need to hold a slipping interface under load. 6 mm is the size for disc-brake caliper-mount bolts (which see thermal cycling and benefit from the full-flat engagement of a straight-tip) and some older-design chainring bolts.\u003c\/p\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e4, 5, 6 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 straight-tip Y-handle is the finishing tool in our shop's hex kit, paired with the ball-tip Y-handle for angled-access work and the long-arm L-keys for high-leverage pulls.\u003c\/p\u003e\n\u003ch2\u003ePro tip from our mechanics\u003c\/h2\u003e\n\u003cp\u003eThe straight-tip Y-handle takes a stem face-plate bolt to about 80% of its working torque comfortably. For the final 20% on a published spec (say, 5 Nm on an aluminum bar with carbon-bar tolerance below), you want a torque wrench. The Y-handle gets you there fast; a torque wrench gets you there to spec.\u003c\/p\u003e\n\u003cp\u003eFor the hex sizes the Y-handle covers vs. the sizes that demand a long-arm L-key, and where the working-torque crossover lives between ball-tip and straight-tip: \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":"4, 5, 6mm Straight-tip Hex","offer_id":44140759646252,"sku":"624909","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/5786\/5260\/products\/1781_2hx-us.jpg?v=1745317617","url":"https:\/\/uniorusa.com\/products\/three-way-wrench-4-5-6mm-straight-tip-hex","provider":"Unior USA","version":"1.0","type":"link"}