{"product_id":"lisle-stud-remover-71200-3-8-3-4-dual-hole-extractor-1-2-drive-flush-seat-design","title":"Lisle Stud Remover 71200 – 3\/8\"–3\/4\" Dual-Hole Extractor, 1\/2\" Drive, Flush-Seat Design","description":"\u003cp\u003e\u003cstrong\u003eThe Lisle 71200 Stud Remover is a compact, two-hole extractor that grabs and withdraws studs—down to studs broken nearly flush with the mounting surface—using a 1\/2\" square drive.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you work on engines, manifolds, or cylinder heads, seized or broken studs are an everyday nuisance. The Lisle 71200 is engineered to let you remove studs ranging from 3\/8\" (10 mm) to 3\/4\" (19 mm) without damaging surrounding threads. Its two precisely sized apertures (1\/2\" \/ 14 mm and 3\/4\" \/ 19 mm) let the tool sit flush against the mounting surface so the extractor can grab studs that are broken off very close to the flange.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Lisle 71200 grip studs that are broken off flush with a surface?\u003c\/h3\u003e\n\n\u003cp\u003eThe tool’s geometry positions the hole opening at the exact plane of the mounting surface, allowing the extractor to clamp around the remaining stud stub. Because it fits flush, it avoids needing extra clearance above the stud and improves engagement even on short stubs.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eTwo hole sizes tailored to common stud diameters for a snug fit\u003c\/li\u003e\n  \u003cli\u003eFlush contact design reduces the need for grinding or drilling\u003c\/li\u003e\n  \u003cli\u003eWorks with a 1\/2\" square drive to apply controlled torque\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat stud sizes can this tool remove and how precise is the fit?\u003c\/h3\u003e\n\n\u003cp\u003eThe Lisle 71200 covers a practical range of stud diameters from 3\/8\" (10 mm) up to 3\/4\" (19 mm). The dual-hole configuration—labeled at 1\/2\" (14 mm) and 3\/4\" (19 mm)—provides optimized contact for each size to reduce slippage and protect the threaded hole.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRange: 3\/8\" (10 mm) to 3\/4\" (19 mm)\u003c\/li\u003e\n  \u003cli\u003eTwo sized apertures match common stud diameters for better grip\u003c\/li\u003e\n  \u003cli\u003eMinimizes risk of cross-threading or further damage during extraction\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat drive and accessories are required to use the extractor safely?\u003c\/h3\u003e\n\n\u003cp\u003eThe stud remover is designed for use with a standard 1\/2\" square drive; this lets you use ratchets, breaker bars, or impact tools as appropriate. Use steady, controlled torque and back out the stud slowly to avoid sudden failure or additional thread damage.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompatible with 1\/2\" square drive ratchets and breaker bars\u003c\/li\u003e\n  \u003cli\u003eCan be paired with penetrating oil and heat when studs are corroded\u003c\/li\u003e\n  \u003cli\u003eWorks best with proper torque control and gradual extraction\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this tool protect the threaded hole during removal?\u003c\/h3\u003e\n\n\u003cp\u003eBecause each aperture is sized to fit close to the stud diameter and the tool seats flush against the mounting surface, it reduces lateral movement and marring of the internal threads. Proper use—matching the hole to the stud size and using steady torque—helps preserve the surrounding threads.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eClose-fit holes minimize side forces on the threaded bore\u003c\/li\u003e\n  \u003cli\u003eFlush seating prevents tool canting and surface gouging\u003c\/li\u003e\n  \u003cli\u003eIdeal for engine blocks, exhaust manifolds, and cylinder heads where thread protection matters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Lisle 71200 Stud Remover is intended for mechanics, restoration hobbyists, and DIYers who encounter seized or broken studs in automotive and light industrial work. If you need a compact, single-tool solution that fits into tight areas and works with standard 1\/2\" drives, this extractor offers a straightforward, durable option to extract studs while minimizing collateral damage to the threaded mounting surface.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eTool type: stud remover \/ extractor\u003c\/li\u003e\n  \u003cli\u003eStud range: 3\/8\" (10 mm) to 3\/4\" (19 mm)\u003c\/li\u003e\n  \u003cli\u003eHoles: 1\/2\" (14 mm) and 3\/4\" (19 mm)\u003c\/li\u003e\n  \u003cli\u003eDrive: 1\/2\" square drive required\u003c\/li\u003e\n  \u003cli\u003ePackage dimensions: 5.25\" W x 6.13\" H x 2.5\" D\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What drive size does the Lisle 71200 require?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It uses a standard 1\/2\" square drive, compatible with ratchets or breaker bars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What stud diameters can it remove?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Covers studs from 3\/8\" (10 mm) up to 3\/4\" (19 mm) using two precision apertures.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Lisle","offers":[{"title":"Default Title","offer_id":48082933448862,"sku":"B0041ESF2G","price":51.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/lisle-71200-front-profile.jpg?v=1785819284","url":"https:\/\/northtrailauto.ca\/products\/lisle-stud-remover-71200-3-8-3-4-dual-hole-extractor-1-2-drive-flush-seat-design","provider":"North Trail Auto","version":"1.0","type":"link"}