{"product_id":"tpmsbogo-buy-mst45s-get-stp13s-free","title":"GripEdge | Ultimate RPT Star Driver Bundle | Buy MST45S \u0026 Get STP13S Free","description":"\u003ch2\u003eBuy 1, Get 1 Free: The Ultimate RPT™ Star Driver Bundle\u003c\/h2\u003e\n\n\u003cp\u003eStar recesses resist cam-out well when tool and fastener are in tolerance. But as a socket wears or corrosion narrows the recess, the contact patch shifts to the lobe tips: the tool still seats, but torque now deforms the recess instead of turning the fastener. This bundle covers both prevention and recovery across one drive family. The \u003ca href=\"https:\/\/www.gripedgetools.com\/products\/45-pc-master-r-p-t-star-driver-set\"\u003eMST45S 45-Pc Master RPT™ Star Driver Set\u003c\/a\u003e handles standard Torx, tamper-proof, and external E-Star, and the \u003ca href=\"https:\/\/www.gripedgetools.com\/products\/gripedge-tools-13-pc-r-p-t-star-plus-driver-set\"\u003eSTP13S 13-Pc RPT™ Star Plus Driver Set\u003c\/a\u003e ships free, adding the Star Plus profile. Together they cover the full spectrum of star-pattern fasteners in serviceable and compromised condition.\u003c\/p\u003e\n\n\u003cp\u003eBoth sets share the same patented RPT™ engagement profile, so torque-transfer behavior is consistent across the entire range, from a T6 micro-driver to a seized E24. No socket in either set is a reduced-specification piece.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in the bundle\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"https:\/\/www.gripedgetools.com\/products\/45-pc-master-r-p-t-star-driver-set\"\u003eMST45S: 45-Pc Master RPT™ Star Driver Set\u003c\/a\u003e\u003c\/strong\u003e — Standard Torx T6 through T100, tamper-proof T8H through T55H, and external E-Star E4 through E24. A complete star-drive foundation spanning internal, security, and external profiles in a single case.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"https:\/\/www.gripedgetools.com\/products\/gripedge-tools-13-pc-r-p-t-star-plus-driver-set\"\u003eSTP13S: 13-Pc RPT™ Star Plus Driver Set\u003c\/a\u003e\u003c\/strong\u003e (FREE) — Sizes IP6 through IP60. The Star Plus profile, a six-lobe geometry with squared-off flanks that expand the contact area for higher torque capacity, used extensively in modern automotive and equipment assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe engineering behind the grip\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReprofiled tooth geometry that loads inward.\u003c\/strong\u003e A standard star tool concentrates contact stress at the lobe corners and drives material radially outward, progressively enlarging the recess and initiating cam-out under load. The RPT™ profile relocates the contact point along the lobe flank and directs force inward, forming a mechanical lock that increases engagement as torque rises. Load transfers into the fastener body rather than shearing the recess walls, yielding up to 50% more torque capacity on undamaged fasteners and up to 400% more on compromised ones.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle-tool prevention and extraction.\u003c\/strong\u003e Because the RPT™ profile maintains engagement on both nominal and deformed recesses, the same socket that prevents rounding on installation will also break loose a fastener whose recess has already degraded, eliminating the need for a dedicated extraction set.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBi-directional load capacity.\u003c\/strong\u003e The profile transfers torque in both rotational directions for removal and installation. Where a replacement fastener is unavailable, a compromised fastener can be re-driven and torqued to hold temporarily.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull profile coverage.\u003c\/strong\u003e The two sets together span internal Torx, tamper-proof, external E-Star, and Star Plus patterns across a working range of T6 to T100 and E4 to E24, covering the internal, security, external, and high-torque star geometries encountered in field service.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterials and marking.\u003c\/strong\u003e Star sockets are precision-machined from S2 tool steel for hardness and fatigue resistance under repeated loading; the master set's E-Star sockets are formed from Cr-Mo steel for impact durability. All sockets carry corrosion-resistant plating and oversized, roll-stamped, ink-filled size markings, and ship in a premium case with a removable foam insert.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eTwo sets, one free, and a single engagement principle across every star geometry from a T6 micro-fastener to a seized E24. Don't strip it. GRIP IT.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eFor the tooth-geometry analysis and supporting torque data, see our \u003ca href=\"https:\/\/www.gripedgetools.com\/pages\/rpt-technology\"\u003eRPT™ Technology page\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"GRIPEDGE Tools","offers":[{"title":"Default Title","offer_id":52520581857591,"sku":"TPMSBOGO","price":549.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/2543\/1863\/files\/TPMSBOGO_WB.jpg?v=1782955946","url":"https:\/\/www.gripedgetools.com\/products\/tpmsbogo-buy-mst45s-get-stp13s-free","provider":"GRIPEDGE Tools","version":"1.0","type":"link"}