{"product_id":"milwaukee-3771-21-m18-fuel-striker-hammer-chisel-kit","title":"Milwaukee M18 FUEL STRIKER Hammer Chisel 5.0Ah Kit (3771-21)","description":"\u003csection data-aplus\u003e\n\u003cdetails id=\"product-features\" class=\"acc\" open\u003e\u003csummary\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e\u003cdiv class=\"features\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-inside\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/impact-energy.svg\" alt=\"impact-energy\" class=\"aplusicon\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e7 Joules of Pneumatic-Equivalent Force\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003eMatches the striking force of long-barrel pneumatic hammers at 145 PSI shop pressure, with no compressor or air hose required.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-inside\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/speed-settings.svg\" alt=\"speed-settings\" class=\"aplusicon\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e3-Mode Variable Speed Control\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003eFeather the trigger from 0 to 3,000 BPM across three modes, including a ramp-up setting, for controlled strikes that protect surrounding parts.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-inside\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/chuck-type.svg\" alt=\"chuck-type\" class=\"aplusicon\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eTool-Free .401 in. Twist Chuck\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003eSwap hammer and flat chisel bits in seconds with an automatic-locking, tool-free twist chuck built for greasy-glove bay work.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails id=\"product-overview\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\" data-product-summary\u003e\n\u003cp\u003eThe Milwaukee M18 FUEL STRIKER Hammer Chisel (3771-21) is the first cordless hammer chisel built to match long-barrel pneumatic striking force without a compressor or air hose anywhere in sight. This is a cordless hammer chisel designed for automotive service technicians who need to separate ball joints, tie rods, and control arms at full pneumatic speed, whether they're at a bay with an air line run to it or three states away from one. A POWERSTATE Brushless Motor drives 7 Joules of striking energy — the same output leading long-barrel pneumatic hammers deliver at 145 PSI shop pressure — packaged into a pistol-grip tool you carry to the job instead of the other way around.\u003c\/p\u003e\n\u003cp\u003eOn the trigger side, it's a genuinely controllable tool, not just a powerful one. A variable speed trigger lets you feather the impact rate from a dead stop up to 3,000 blows per minute, and three selectable modes — a 0 to 2,500 BPM setting, a 0 to 3,000 BPM setting, and a ramp-up mode that builds speed gradually — give you a way to match the strike to how stubborn the joint actually is. That matters on suspension work: a rusted-in ball joint calls for a different touch than a fresh tie rod end, and full power into either without control risks marring a boot, cracking a knuckle, or sending the chisel skating off target. The ramp-up mode is built for that first-contact moment, so you can seat the chisel before stepping into full pneumatic-equivalent force.\u003c\/p\u003e\n\u003cp\u003eThe engineering underneath backs up the numbers. A patented battery isolation system keeps the pack seated securely and cuts down on the vibration a 7-Joule impact mechanism would otherwise send into your hand over a full shift. REDLINK PLUS Intelligence runs full-circle communication between the tool, battery, and charger to guard against overload, heat, and over-discharge — the same protection scheme found across the rest of the M18 lineup. Bit changes go through a .401-inch round shank twist chuck: twist, drop the bit in, twist back, and it locks automatically, no collar or button to fight with cold or greasy hands.\u003c\/p\u003e\n\u003cp\u003eFor actual bay work, the details add up. A targeted LED work light throws light exactly where the chisel meets the joint, which matters more than it sounds like when you're working blind under a wheel well. At 9.35 lbs and 4.1 inches long (bare tool), it's sized to reach the same tight spaces a pneumatic hammer would, minus the hose snaking behind it and catching on brake lines and control arms. Milwaukee backs the tool with a 3-year warranty, and keeping the twist-lock chuck smooth is as simple as a monthly drop of oil-based lubricant.\u003c\/p\u003e\n\u003cp\u003eBecause it runs on the M18 REDLITHIUM platform, this suspension teardown tool pulls double duty as one more tool that shares batteries and chargers with everything else in an M18-equipped bay — impact wrenches, ratchets, lights, and over 300 tools in total. This kit pairs the 3771-20 tool head with an M18 REDLITHIUM HIGH OUTPUT XC5.0 Resistant battery and an M18 \u0026amp; M12 charger, so a shop already standardized on M18 batteries can run this tool off packs it already owns, or pull a bigger pack off the shelf for longer stretches between charges.\u003c\/p\u003e\n\u003cp\u003eThis is a ball joint removal tool and automotive service tool first, and Milwaukee doesn't position it as anything else — it's not a substitute for an SDS Max rotary hammer on concrete or masonry. Where it earns its keep is metal-on-metal separation: ball joints, tie rods, control arms, wheel pins, anywhere a technician currently reaches for a long-barrel air hammer. If that's a regular part of the workday, the M18 FUEL STRIKER Hammer Chisel cuts the compressor and hose out of the equation entirely; if the job is actually chiseling concrete, a rotary hammer is still the right call.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eBall Joint Removal at Pneumatic Speed\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"img\"\u003e\u003cimg src=\"https:\/\/www.milwaukeetool.com\/--\/web-images\/sc\/16fa7de0075b490c94f5b30d707d9aa9?hash=e8c5b0ebbe4082cef5925b5d66cea16b\u0026amp;lang=en\" alt=\"Milwaukee M18 FUEL STRIKER Hammer Chisel separating a ball joint on a vehicle suspension knuckle\" class=\"tnblock-img\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"copy\"\u003e\n\u003cp\u003eSeparating a seized ball joint is one of the more punishing parts of a suspension teardown when the only cordless option on the cart is an impact driver or a manual pickle fork. The M18 FUEL STRIKER Hammer Chisel is built specifically for this moment — 7 Joules of impact energy at up to 3,000 BPM gets a fork bit through a stuck joint at the same speed a shop air hammer would, without a hose run to the bay.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMatches long-barrel pneumatic output at 145 PSI shop pressure\u003c\/li\u003e\n\u003cli\u003eCuts ball joint and tie rod separation time versus manual tools\u003c\/li\u003e\n\u003cli\u003eRuns anywhere in the shop or in the field — no compressor required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eWorld's First Cordless Hammer Chisel\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e\u003cdiv class=\"row flip\"\u003e\n\u003cdiv class=\"img\"\u003e\u003cimg src=\"https:\/\/www.milwaukeetool.com\/--\/web-images\/sc\/b785ae54b7724344b1e978b440ea8a18?hash=be12da917cb2114b9f2c57bdf715f176\u0026amp;lang=en\" alt=\"Milwaukee M18 FUEL STRIKER Hammer Chisel separating a brake rotor and hub assembly on a vehicle\" class=\"tnblock-img\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"copy\"\u003e\n\u003cp\u003eMilwaukee built the M18 FUEL STRIKER Hammer Chisel to be the first cordless tool in its class, and the target application shows in the details — it's sized and balanced for the tight quarters around a hub, rotor, or backing plate, not scaled down from a bigger demolition tool. A POWERSTATE Brushless Motor and patented battery isolation system keep impact energy consistent and vibration manageable through repetitive strikes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePOWERSTATE Brushless Motor delivers consistent 7-Joule strikes\u003c\/li\u003e\n\u003cli\u003ePatented battery isolation system reduces vibration and keeps the pack seated\u003c\/li\u003e\n\u003cli\u003eCompatible with all M18 REDLITHIUM batteries and chargers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eLong-Barrel Reach for Tight Undercarriage Work\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"img\"\u003e\u003cimg src=\"https:\/\/www.milwaukeetool.com\/--\/web-images\/sc\/dcbf9627447744e0b918f8aab495da9a?hash=be12da917cb2114b9f2c57bdf715f176\u0026amp;lang=en\" alt=\"Technician using the Milwaukee M18 FUEL STRIKER Hammer Chisel underneath a vehicle during suspension work\" class=\"tnblock-img\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"copy\"\u003e\n\u003cp\u003eA long barrel and slim nose let the STRIKER reach into the same undercarriage spaces a pneumatic hammer would, without a hose to route around control arms and lines. The .401-inch round shank twist chuck makes swapping between a hammer chisel bit and a flat chisel bit a one-handed job, even mid-task underneath a vehicle.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e.401-in. round shank twist chuck with automatic locking\u003c\/li\u003e\n\u003cli\u003eTargeted LED work light for visibility in shadowed areas\u003c\/li\u003e\n\u003cli\u003eVariable speed trigger for feathered control from a dead stop\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails id=\"product-whats-included\" class=\"acc\" open\u003e\u003csummary\u003e\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"tnincluded-wrapper\"\u003e\u003cul\u003e\n\u003cli\u003e(1) M18 FUEL STRIKER Hammer Chisel (3771-20)\u003c\/li\u003e\n\u003cli\u003e(1) M18 REDLITHIUM HIGH OUTPUT XC5.0 Resistant Battery (48-11-1855R)\u003c\/li\u003e\n\u003cli\u003e(1) M18 \u0026amp; M12 Charger (48-59-1812)\u003c\/li\u003e\n\u003cli\u003e(1) Hammer \u0026amp; Flat Chisel Bit\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003cdiv class=\"included-note\"\u003e\u003cp\u003eThis kit ships with one M18 REDLITHIUM HIGH OUTPUT XC5.0 Resistant battery (5.0Ah) — no case is included with this kit. The tool is compatible with any M18 REDLITHIUM battery, so it's easy to step up to a higher-capacity pack from your existing lineup if you want longer runtime between charges.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails id=\"product-key-specifications\" class=\"acc\" open\u003e\u003csummary\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e\u003ctable class=\"aplusspecs\"\u003e\n\u003ctr\u003e\n\u003cth\u003eImpact Energy\u003c\/th\u003e\n\u003ctd\u003e7 Joules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpact Rate\u003c\/th\u003e\n\u003ctd\u003e0 - 3,000 BPM (3-mode selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChuck Type\u003c\/th\u003e\n\u003ctd\u003e.401 in. Round Shank Twist Chuck\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTool Weight\u003c\/th\u003e\n\u003ctd\u003e9.35 lbs (bare tool)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTool Length\u003c\/th\u003e\n\u003ctd\u003e4.1 in. (bare tool)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHandle Type\u003c\/th\u003e\n\u003ctd\u003ePistol Grip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery Platform\u003c\/th\u003e\n\u003ctd\u003eM18 REDLITHIUM (18V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMade In\u003c\/th\u003e\n\u003ctd\u003eVietnam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails id=\"product-compatibility\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e\u003cdiv class=\"compat-list\"\u003e\n\u003cdiv class=\"compat-row\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/compatible.svg\" alt=\"\" class=\"icon-sm\"\u003e\u003cdiv\u003e\n\u003cstrong\u003eM18 REDLITHIUM Battery System\u003c\/strong\u003e\u003cdiv class=\"compat-detail\"\u003eRuns on any M18 REDLITHIUM battery and charger, including the included HIGH OUTPUT XC5.0 Resistant pack.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compat-row\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/compatible.svg\" alt=\"\" class=\"icon-sm\"\u003e\u003cdiv\u003e\n\u003cstrong\u003e.401 in. Round Shank Bits\u003c\/strong\u003e\u003cdiv class=\"compat-detail\"\u003eTwist chuck accepts any standard .401-inch round shank hammer or flat chisel bit.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compat-row\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/compatible.svg\" alt=\"\" class=\"icon-sm\"\u003e\u003cdiv\u003e\n\u003cstrong\u003eM18 System\u003c\/strong\u003e\u003cdiv class=\"compat-detail\"\u003ePart of the M18 cordless system of 300+ tools that share the same batteries and chargers.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails id=\"product-applications-uses\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eBuilt For\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e\u003cdiv class=\"tags\"\u003e\n\u003cspan class=\"tag\"\u003eAutomotive Service\u003c\/span\u003e\n\u003cspan class=\"tag\"\u003eSuspension \u0026amp; Undercarriage Repair\u003c\/span\u003e\n\u003cspan class=\"tag\"\u003eFleet Maintenance\u003c\/span\u003e\n\u003cspan class=\"tag\"\u003eMobile Repair Technicians\u003c\/span\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails id=\"product-pro-tips\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003ePro Tip\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e\u003cdiv class=\"tip-row\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/pro-tip.svg\" alt=\"\" class=\"icon-lg\"\u003e\u003cp class=\"tip-text\"\u003eKeep the twist-lock chuck operating smoothly by applying an oil-based lubricant to it about once a month — it's a 30-second habit that prevents the chuck from binding up during fast bit changes on the job.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails id=\"product-warranty\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eWarranty \u0026amp; Support\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e\u003cdiv class=\"warranty-row\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/warranty.svg\" alt=\"warranty\" class=\"icon-sm\"\u003e\u003cdiv class=\"warranty-text\"\u003eBacked by Milwaukee's 3-year tool warranty and a 3-year warranty on the included REDLITHIUM battery.\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails id=\"product-tool-nut-take\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eTool Nut's Take\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eTool Nut's Take\u003c\/div\u003e\n\u003ch3\u003eThe M18 FUEL STRIKER Hammer Chisel Cuts the Hose Out of the Equation\u003c\/h3\u003e\n\u003cp\u003eIf your shop still tethers ball joint work to an air compressor, this is the tool that lets you leave the hose coiled up.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Automotive service technicians, mobile mechanics, and fleet techs who regularly separate ball joints, tie rods, and control arms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e It's the first cordless tool to hit 7 Joules of impact energy — pneumatic-equivalent force at 145 PSI — with three selectable modes for real control instead of just raw power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This kit ships with the M18 REDLITHIUM HIGH OUTPUT XC5.0 Resistant battery (48-11-1855R), which is good for a full day of suspension work — Milwaukee rates it at 20+ ball joint separations per charge.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cdetails id=\"product-faqs\" class=\"acc\"\u003e\u003csummary\u003e\u003ch2\u003eCommon Questions\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"acc-body\"\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes this replace my pneumatic air hammer?\u003c\/strong\u003e For ball joint, tie rod, and control arm separation, yes — the M18 FUEL STRIKER Hammer Chisel matches the 7-Joule output of a long-barrel pneumatic hammer at 145 PSI without a compressor or hose. It's not built for concrete or masonry chiseling; that's still a job for a rotary hammer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat batteries does this kit use?\u003c\/strong\u003e It ships with one M18 REDLITHIUM HIGH OUTPUT XC5.0 Resistant battery (48-11-1855R) and an M18 \u0026amp; M12 charger (48-59-1812). It's compatible with every M18 REDLITHIUM battery Milwaukee makes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat accessories fit the chuck?\u003c\/strong\u003e Any standard .401-inch round shank hammer or flat chisel bit works with the tool-free twist chuck.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat kind of work is this tool made for?\u003c\/strong\u003e It's purpose-built for automotive service technicians tearing down suspensions — ball joints, tie rods, control arms, and wheel pins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow do I maintain the chuck?\u003c\/strong\u003e Apply an oil-based lubricant to the twist chuck about once a month to keep bit changes smooth.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/section\u003e","brand":"Milwaukee","offers":[{"title":"Default Title","offer_id":53623478976806,"sku":"3771-21","price":749.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/3771-21_1.jpg?v=1786411556","url":"https:\/\/www.toolnut.com\/products\/milwaukee-3771-21-m18-fuel-striker-hammer-chisel-kit","provider":"Tool Nut","version":"1.0","type":"link"}