{"product_id":"makita-hr4002","title":"Makita 1-9\/16\" Rotary Hammer, accepts SDS-MAX bits, 2-mode, var. spd., case - HR4002","description":"\u003ch2\u003eMakita 1-9\/16\" Rotary Hammer, accepts SDS-MAX bits, 2-mode, var. spd., case - HR4002\u003c\/h2\u003e\n\u003cp\u003ePowerful motor delivers 2,500 BPM for the most demanding applications. Torque limiting clutch engineered to prevent gear damage by automatically disengaging gears if the bit binds. Sequential impact timing delivers timed hammering during rotation to minimize overlapping bit impacts resulting in up to 50% faster drilling. Makita motor advantage engineered with field core interlocking steel laminations, dual ball bearing armature and more copper commutator bars, increasing energy transfer efficiency for more power and longer tool life. 12 bit angle settings allow the bit to be set at different positions for operating convenience. Automatic brush cut-off protects commutator from damage for longer tool life. 2-mode operation for hammering only or hammering with rotation.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\"No hammering when idling\" functions helps increase tool life\u003c\/li\u003e\n\u003cli\u003eOne-touch sliding chuck for quick bit changes\u003c\/li\u003e\n\u003cli\u003eSoft grip handle provides increased comfort on the job\u003c\/li\u003e\n\u003cli\u003eAccepts SDS-MAX bits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:f9745daf-8736-4129-8320-1a1e7ba6b481-25\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:f9745daf-8736-4129-8320-1a1e7ba6b481-25\" data-turn-id-container=\"request-WEB:f9745daf-8736-4129-8320-1a1e7ba6b481-25\" data-testid=\"conversation-turn-48\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-3 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"fe5cf939-1c20-4f51-89e8-b1794eee4464\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-5-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cul data-start=\"28\" data-end=\"1785\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"1ypnaor\" data-start=\"28\" data-end=\"285\"\u003e\n\u003cstrong data-start=\"30\" data-end=\"66\"\u003eHeavy-Duty Concrete Performance:\u003c\/strong\u003e The Makita HR4002 1-9\/16\" SDS-MAX Rotary Hammer features a powerful \u003cstrong data-start=\"135\" data-end=\"151\" data-is-only-node=\"\"\u003e10 AMP motor\u003c\/strong\u003e delivering \u003cstrong data-start=\"163\" data-end=\"196\"\u003e4.6 ft. lbs. of impact energy\u003c\/strong\u003e for demanding drilling and chiseling applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"hokkz\" data-start=\"286\" data-end=\"534\"\u003e\n\u003cstrong data-start=\"288\" data-end=\"319\"\u003eVersatile 2-Mode Operation:\u003c\/strong\u003e Choose between \u003cstrong data-start=\"335\" data-end=\"362\" data-is-only-node=\"\"\u003eHammering with Rotation\u003c\/strong\u003e for concrete drilling and \u003cstrong data-start=\"389\" data-end=\"407\"\u003eHammering Only\u003c\/strong\u003e for chiseling, making it suitable for anchors, masonry, demolition, and renovation work. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"iuzj9b\" data-start=\"535\" data-end=\"769\"\u003e\n\u003cstrong data-start=\"537\" data-end=\"576\"\u003eProfessional SDS-MAX Compatibility:\u003c\/strong\u003e Accepts SDS-MAX bits and provides a \u003cstrong data-start=\"613\" data-end=\"651\" data-is-only-node=\"\"\u003e1-9\/16\" concrete drilling capacity\u003c\/strong\u003e, making it a reliable choice for contractors handling large-scale applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1n50zs3\" data-start=\"770\" data-end=\"977\"\u003e\n\u003cstrong data-start=\"772\" data-end=\"801\"\u003eEnhanced Tool Protection:\u003c\/strong\u003e The built-in \u003cstrong data-start=\"815\" data-end=\"841\" data-is-only-node=\"\"\u003etorque limiting clutch\u003c\/strong\u003e helps protect gears by disengaging when the bit binds, improving durability and operator control. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"n3h3v6\" data-start=\"978\" data-end=\"1186\"\u003e\n\u003cstrong data-start=\"980\" data-end=\"1012\"\u003eEfficient Jobsite Operation:\u003c\/strong\u003e Variable speed control, \u003cstrong data-start=\"1037\" data-end=\"1062\" data-is-only-node=\"\"\u003e680 RPM no-load speed\u003c\/strong\u003e, and \u003cstrong data-start=\"1068\" data-end=\"1081\"\u003e2,500 BPM\u003c\/strong\u003e provide controlled performance across drilling and chipping tasks. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"odj0wa\" data-start=\"1187\" data-end=\"1380\"\u003e\n\u003cstrong data-start=\"1189\" data-end=\"1219\"\u003eComfortable Long-Term Use:\u003c\/strong\u003e The ergonomic rubberized grip and balanced design help improve handling during extended concrete and masonry applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"xtta9\" data-start=\"1381\" data-end=\"1552\"\u003e\n\u003cstrong data-start=\"1383\" data-end=\"1409\"\u003eReady for the Jobsite:\u003c\/strong\u003e Includes side handle, depth gauge, grease, and carrying case for convenient transport and immediate use. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"t1pg2q\" data-start=\"1553\" data-end=\"1785\" data-is-last-node=\"\"\u003e\n\u003cstrong data-start=\"1555\" data-end=\"1581\"\u003eExpert Recommendation:\u003c\/strong\u003e A dependable rotary hammer for contractors, electricians, plumbers, and concrete professionals who need strong SDS-MAX performance for drilling and demolition tasks. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch5\u003e\n\u003cbr\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cp data-start=\"224\" data-end=\"447\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong data-start=\"224\" data-end=\"266\"\u003eQ: What is the Makita HR4002 used for?\u003c\/strong\u003e\u003cbr data-start=\"266\" data-end=\"269\"\u003eA: It is a heavy-duty rotary hammer designed for drilling and chiseling in concrete, masonry, and other demanding construction applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"449\" data-end=\"647\"\u003e\u003cstrong data-start=\"449\" data-end=\"497\"\u003eQ: What type of bits does the HR4002 accept?\u003c\/strong\u003e\u003cbr data-start=\"497\" data-end=\"500\"\u003eA: It accepts \u003cstrong data-start=\"514\" data-end=\"530\"\u003eSDS-Max bits\u003c\/strong\u003e, making it ideal for large-diameter drilling, anchoring, and demolition tasks. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"649\" data-end=\"855\"\u003e\u003cstrong data-start=\"649\" data-end=\"690\"\u003eQ: How powerful is the Makita HR4002?\u003c\/strong\u003e\u003cbr data-start=\"690\" data-end=\"693\"\u003eA: It features a \u003cstrong data-start=\"710\" data-end=\"726\"\u003e10 AMP motor\u003c\/strong\u003e delivering \u003cstrong data-start=\"738\" data-end=\"778\"\u003e4.6 ft.lbs. (6.2 J) of impact energy\u003c\/strong\u003e for tough drilling and chiseling jobs. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"857\" data-end=\"1062\"\u003e\u003cstrong data-start=\"857\" data-end=\"906\"\u003eQ: What operating modes does the HR4002 have?\u003c\/strong\u003e\u003cbr data-start=\"906\" data-end=\"909\"\u003eA: It offers two modes: \u003cstrong data-start=\"933\" data-end=\"960\"\u003eHammering with Rotation\u003c\/strong\u003e for drilling and \u003cstrong data-start=\"978\" data-end=\"996\"\u003eHammering Only\u003c\/strong\u003e for chiseling applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1064\" data-end=\"1243\"\u003e\u003cstrong data-start=\"1064\" data-end=\"1122\"\u003eQ: What is the drilling capacity of the Makita HR4002?\u003c\/strong\u003e\u003cbr data-start=\"1122\" data-end=\"1125\"\u003eA: It drills up to \u003cstrong data-start=\"1144\" data-end=\"1167\"\u003e1-9\/16\" in concrete\u003c\/strong\u003e and up to \u003cstrong data-start=\"1178\" data-end=\"1204\"\u003e4-1\/8\" with a core bit\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1245\" data-end=\"1416\"\u003e\u003cstrong data-start=\"1245\" data-end=\"1285\"\u003eQ: How fast does the HR4002 operate?\u003c\/strong\u003e\u003cbr data-start=\"1285\" data-end=\"1288\"\u003eA: It delivers up to \u003cstrong data-start=\"1309\" data-end=\"1341\"\u003e2,500 blows per minute (BPM)\u003c\/strong\u003e with a no-load speed of \u003cstrong data-start=\"1366\" data-end=\"1377\"\u003e680 RPM\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1418\" data-end=\"1613\"\u003e\u003cstrong data-start=\"1418\" data-end=\"1466\"\u003eQ: Does the HR4002 have protection features?\u003c\/strong\u003e\u003cbr data-start=\"1466\" data-end=\"1469\"\u003eA: Yes. It includes a \u003cstrong data-start=\"1491\" data-end=\"1517\"\u003etorque limiting clutch\u003c\/strong\u003e that helps protect gears by disengaging if the bit binds. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1615\" data-end=\"1812\"\u003e\u003cstrong data-start=\"1615\" data-end=\"1662\"\u003eQ: Is the Makita HR4002 comfortable to use?\u003c\/strong\u003e\u003cbr data-start=\"1662\" data-end=\"1665\"\u003eA: Yes. The rubberized soft grip and ergonomic handle design improve comfort and control during extended use. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1814\" data-end=\"2006\"\u003e\u003cstrong data-start=\"1814\" data-end=\"1867\"\u003eQ: What accessories are included with the HR4002?\u003c\/strong\u003e\u003cbr data-start=\"1867\" data-end=\"1870\"\u003eA: The tool includes a \u003cstrong data-start=\"1893\" data-end=\"1967\"\u003eside handle, depth gauge, hammer bit grease, and plastic carrying case\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2008\" data-end=\"2200\"\u003e\u003cstrong data-start=\"2008\" data-end=\"2053\"\u003eQ: How much does the Makita HR4002 weigh?\u003c\/strong\u003e\u003cbr data-start=\"2053\" data-end=\"2056\"\u003eA: It weighs approximately \u003cstrong data-start=\"2083\" data-end=\"2096\"\u003e14.6 lbs.\u003c\/strong\u003e, balancing power and portability for professional applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2202\" data-end=\"2459\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2202\" data-end=\"2250\"\u003eQ: Who is the Makita HR4002 best suited for?\u003c\/strong\u003e\u003cbr data-start=\"2250\" data-end=\"2253\"\u003eA: It is ideal for contractors, electricians, plumbers, and construction professionals needing reliable SDS-Max performance for concrete drilling and demolition work\u003c\/p\u003e\n\u003ch5\u003e\n\u003cbr\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"244\" data-end=\"1436\"\u003e\n\u003cli data-section-id=\"67ijdc\" data-start=\"244\" data-end=\"318\"\u003eRemove batteries before cleaning, inspecting, or performing maintenance.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"tbyk1t\" data-start=\"319\" data-end=\"434\"\u003eClean sawdust, wood chips, and debris from the chain, guide bar, sprocket area, and cooling vents after each use.\u003c\/li\u003e\n\u003cli data-section-id=\"4ua61z\" data-start=\"435\" data-end=\"591\"\u003eCheck and adjust chain tension regularly using the tool-less chain adjustment system for safe and efficient cutting. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1vz10uv\" data-start=\"592\" data-end=\"739\"\u003eKeep the 16\" guide bar and chain properly lubricated; refill the automatic chain oil reservoir when needed. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"7lcdp2\" data-start=\"740\" data-end=\"831\"\u003eInspect the chain for dull, damaged, or worn cutters and sharpen or replace as necessary.\u003c\/li\u003e\n\u003cli data-section-id=\"1vzzs13\" data-start=\"832\" data-end=\"912\"\u003eClean the guide bar groove and oil ports to maintain proper chain lubrication.\u003c\/li\u003e\n\u003cli data-section-id=\"1mozmo4\" data-start=\"913\" data-end=\"990\"\u003eCheck the chain brake, trigger switch, and safety features before each use.\u003c\/li\u003e\n\u003cli data-section-id=\"17mntwf\" data-start=\"991\" data-end=\"1104\"\u003eKeep battery contacts clean and store BL1850B batteries in a cool, dry location away from extreme temperatures.\u003c\/li\u003e\n\u003cli data-section-id=\"37oxzo\" data-start=\"1105\" data-end=\"1209\"\u003eAvoid harsh cleaners such as gasoline, thinner, or alcohol; use a clean cloth for routine maintenance.\u003c\/li\u003e\n\u003cli data-section-id=\"13rvxxm\" data-start=\"1210\" data-end=\"1293\"\u003eInstall the chain cover before storage and keep the saw in a dry, protected area.\u003c\/li\u003e\n\u003cli data-section-id=\"r4xkgo\" data-start=\"1294\" data-end=\"1436\"\u003eUse genuine Makita replacement parts, batteries, and chargers to maintain performance and reliability. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Makita","offers":[{"title":"Default Title","offer_id":45833743204543,"sku":"HR4002","price":396.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/768fd31e-3c6d-4e93-97b7-34303bfa06ae_734cec41-df68-4fb1-846e-fbc50d9f49b7.jpg?v=1783604997","url":"https:\/\/www.mybackyardzone.com\/products\/makita-hr4002","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}