{"product_id":"stanley-sk58310-underwater-hydraulic-sinker-drill","title":"Stanley Underwater Hydraulic Sinker Drill - SK58310","description":"\u003ch2\u003e\u003cspan\u003eStanley Underwater Hydraulic Sinker Drill - SK58310\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eStanley’s SK58310 Sinker Drill is a heavy duty rock drill designed for drilling underwater in concrete, rock and masonry. The feathering on\/off valve makes starting the bit relatively easy. The SK58 uses industry standard drill steel and can drill up to a 3” diameter hole up to 20 feet deep. Air is required to clear holes of debris.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a43165a-5bf8-83ee-baaa-7e3c47082b72-4\" 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-6a43165a-5bf8-83ee-baaa-7e3c47082b72-4\" data-turn-id-container=\"request-6a43165a-5bf8-83ee-baaa-7e3c47082b72-4\" data-testid=\"conversation-turn-54\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--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=\"39ad5231-6b1e-412b-b733-69895561776a\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" 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\" data-turn-start-message=\"true\" 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=\"32\" data-end=\"954\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"177qmf4\" data-start=\"32\" data-end=\"239\"\u003e\n\u003cstrong data-start=\"34\" data-end=\"76\"\u003ePurpose-Built for Underwater Drilling:\u003c\/strong\u003e Engineered specifically for commercial diving, offshore construction, and marine infrastructure projects requiring reliable underwater rock and concrete drilling.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"13bh8o\" data-start=\"240\" data-end=\"413\"\u003e\n\u003cstrong data-start=\"242\" data-end=\"277\"\u003ePowerful Hydraulic Performance:\u003c\/strong\u003e Delivers consistent drilling power for anchor holes, demolition work, and heavy-duty underwater applications in demanding environments.\u003c\/li\u003e\n\u003cli data-section-id=\"ra2cf\" data-start=\"414\" data-end=\"575\"\u003e\n\u003cstrong data-start=\"416\" data-end=\"444\"\u003ePrecision Diver Control:\u003c\/strong\u003e Ergonomic handles and responsive trigger controls provide excellent stability and accuracy, even when operated with diving gloves.\u003c\/li\u003e\n\u003cli data-section-id=\"zyk4yy\" data-start=\"576\" data-end=\"750\"\u003e\n\u003cstrong data-start=\"578\" data-end=\"616\"\u003eRugged Corrosion-Resistant Design:\u003c\/strong\u003e Built with marine-grade, corrosion-resistant components to withstand prolonged exposure to saltwater and harsh underwater conditions.\u003c\/li\u003e\n\u003cli data-section-id=\"1b8w7fo\" data-start=\"751\" data-end=\"954\" data-is-last-node=\"\"\u003e\n\u003cstrong data-start=\"753\" data-end=\"783\"\u003eTrusted Professional Tool:\u003c\/strong\u003e Combines Stanley's proven hydraulic technology with durable construction, making it a dependable choice for commercial, civil engineering, and offshore diving operations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\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\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a43165d-aa80-83ee-b57c-b88d9f658b46-4\" 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-6a43165d-aa80-83ee-b57c-b88d9f658b46-4\" data-turn-id-container=\"request-6a43165d-aa80-83ee-b57c-b88d9f658b46-4\" data-testid=\"conversation-turn-56\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--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=\"51299185-7e31-4525-aa33-349c51e25ca3\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" 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\u003cp data-start=\"32\" data-end=\"346\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong data-start=\"32\" data-end=\"110\"\u003eQ: What is the Stanley SK58310 Underwater Hydraulic Sinker Drill used for?\u003c\/strong\u003e\u003cbr data-start=\"110\" data-end=\"113\"\u003e\u003cstrong data-start=\"113\" data-end=\"119\"\u003eA:\u003c\/strong\u003e It is a heavy-duty hydraulic rock drill designed for underwater drilling in concrete, rock, and masonry, making it ideal for commercial diving, blast hole drilling, and dowel installation. \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=\"348\" data-end=\"554\"\u003e\u003cstrong data-start=\"348\" data-end=\"385\"\u003eQ: What is its drilling capacity?\u003c\/strong\u003e\u003cbr data-start=\"385\" data-end=\"388\"\u003e\u003cstrong data-start=\"388\" data-end=\"394\"\u003eA:\u003c\/strong\u003e The SK58310 can drill holes up to \u003cstrong data-start=\"429\" data-end=\"461\"\u003e3 inches (75 mm) in diameter\u003c\/strong\u003e and \u003cstrong data-start=\"466\" data-end=\"488\"\u003e20 feet (6 m) deep\u003c\/strong\u003e using standard drill steel. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"556\" data-end=\"786\"\u003e\u003cstrong data-start=\"556\" data-end=\"612\"\u003eQ: What hydraulic flow and pressure does it require?\u003c\/strong\u003e\u003cbr data-start=\"612\" data-end=\"615\"\u003e\u003cstrong data-start=\"615\" data-end=\"621\"\u003eA:\u003c\/strong\u003e It operates on \u003cstrong data-start=\"637\" data-end=\"660\"\u003e7–9 GPM (26–34 LPM)\u003c\/strong\u003e hydraulic flow at \u003cstrong data-start=\"679\" data-end=\"712\"\u003e1,500–2,000 PSI (105–140 bar)\u003c\/strong\u003e, with an optimum flow of \u003cstrong data-start=\"738\" data-end=\"747\"\u003e8 GPM\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"788\" data-end=\"979\"\u003e\u003cstrong data-start=\"788\" data-end=\"825\"\u003eQ: Does it require an air supply?\u003c\/strong\u003e\u003cbr data-start=\"825\" data-end=\"828\"\u003e\u003cstrong data-start=\"828\" data-end=\"834\"\u003eA:\u003c\/strong\u003e Yes. An air flush system is required to clear drilling debris and maintain efficient drilling performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"981\" data-end=\"1186\"\u003e\u003cstrong data-start=\"981\" data-end=\"1023\"\u003eQ: Can the rotation speed be adjusted?\u003c\/strong\u003e\u003cbr data-start=\"1023\" data-end=\"1026\"\u003e\u003cstrong data-start=\"1026\" data-end=\"1032\"\u003eA:\u003c\/strong\u003e Yes. The direct-drive rotation motor provides adjustable speeds from \u003cstrong data-start=\"1102\" data-end=\"1118\"\u003e0 to 300 RPM\u003c\/strong\u003e for greater drilling control. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1188\" data-end=\"1369\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1188\" data-end=\"1232\"\u003eQ: Are couplers included with the drill?\u003c\/strong\u003e\u003cbr data-start=\"1232\" data-end=\"1235\"\u003e\u003cstrong data-start=\"1235\" data-end=\"1241\"\u003eA:\u003c\/strong\u003e No. The drill includes hose whips, but \u003cstrong data-start=\"1281\" data-end=\"1330\"\u003equick-disconnect couplers are sold separately\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\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\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"9ac8a1cf-ee05-41b2-b11c-c3ec6fd09370\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" 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\" data-turn-start-message=\"true\" 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=\"0\" data-end=\"460\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"45u90f\" data-start=\"0\" data-end=\"52\"\u003eRinse with fresh water after every underwater use.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ofyk9v\" data-start=\"53\" data-end=\"103\"\u003eRemove salt, sand, and debris from all surfaces.\u003c\/li\u003e\n\u003cli data-section-id=\"13410te\" data-start=\"104\" data-end=\"162\"\u003eInspect hydraulic hoses, fittings, and seals before use.\u003c\/li\u003e\n\u003cli data-section-id=\"1dth5cq\" data-start=\"163\" data-end=\"223\"\u003eCheck the drill steel and moving parts for wear or damage.\u003c\/li\u003e\n\u003cli data-section-id=\"1e7yrp7\" data-start=\"224\" data-end=\"280\"\u003eUse clean hydraulic fluid at the recommended pressure.\u003c\/li\u003e\n\u003cli data-section-id=\"l3k5ip\" data-start=\"281\" data-end=\"335\"\u003eKeep the air flushing system clean and unobstructed.\u003c\/li\u003e\n\u003cli data-section-id=\"38y9io\" data-start=\"336\" data-end=\"399\"\u003eTighten loose fasteners and replace worn components promptly.\u003c\/li\u003e\n\u003cli data-section-id=\"dl9hyp\" data-start=\"400\" data-end=\"460\" data-is-last-node=\"\"\u003eStore the drill clean, dry, and protected when not in use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Stanley","offers":[{"title":"Default Title","offer_id":45800525365439,"sku":"SK58310","price":4395.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/Stanley_SK58310.jpg?v=1782821322","url":"https:\/\/www.mybackyardzone.com\/products\/stanley-sk58310-underwater-hydraulic-sinker-drill","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}