{"title":"Survey Tools","description":"\u003cp\u003ePrecision anchor bolt survey tooling from Shields Precision Solutions — engineered and built in the USA.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/replacement-parts\"\u003eLooking for parts? Shop SDCJ replacement parts →\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"land-survey-anchor-bolt-locating-jig","title":"Anchor Bolt Locating Jig (SDCJ)","description":"\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\" src=\"https:\/\/www.youtube.com\/embed\/ogrRuMwzjDw\" title=\"SDCJ Demo\"\u003e\n  \u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAnchor Bolt Locating Jig (SDCJ) — Find Dead Center on Bent, Leaning, or Damaged Anchor Bolts\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe SDCJ is a precision \u003cstrong\u003eanchor bolt locating jig\u003c\/strong\u003e built for land surveyors who need fast, repeatable dead-center measurements during \u003cstrong\u003eanchor bolt as-built surveys\u003c\/strong\u003e. When freshly set anchor bolts are bent, leaning, or knocked off-plumb, eyeballing the center with a rod and prism introduces error that often isn't caught until the raw data reaches the back office — forcing a costly return trip. The SDCJ gives every crew member the same fixed, repeatable datum, so you capture the true center where the bolt exits the concrete the first time.\u003c\/p\u003e\n\u003cp\u003eIt's the first product in our \u003cstrong\u003eDead Center Assurance Solution\u003c\/strong\u003e line, engineered and manufactured in the USA around a lightweight, high-strength \u003cstrong\u003e6061-T6 aluminum\u003c\/strong\u003e body with corrosion-resistant 304\/316 stainless steel hardware.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow it works on the job site:\u003c\/strong\u003e slide the jig over the anchor bolt, install the bottom plate that matches your bolt diameter, then use the included laser plummet and level to confirm plumb before you store the location. The result is millimeter-accurate as-built data on even the most complex bolt patterns — no guesswork, no return visits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt from the right material for each job:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain body:\u003c\/strong\u003e precision-machined 6061-T6 aluminum — the lightweight, rigid structural datum for every measurement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware:\u003c\/strong\u003e 304\/316 corrosion-resistant stainless steel fasteners\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncremental bottom plates:\u003c\/strong\u003e high-impact ASA plastic, manufactured in ⅛\" increments from ½\" to 2\" for a precise, repeatable fit across bolt sizes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlignment yokes:\u003c\/strong\u003e two ASA plastic yokes that keep the rods aligned and form part of the main body's structure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKey specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits anchor bolts from ½\" to 2\" in diameter, adjustable in ⅛\" increments\u003c\/li\u003e\n\u003cli\u003eHandles up to 12\" of bolt stick-up above the concrete\u003c\/li\u003e\n\u003cli\u003eIncludes laser plummet, plumbing plate, shim pack, hex keys, interchangeable ASA-plastic bottom plates, and a 5\/8-11 to ¼-20 mini-prism adapter\u003c\/li\u003e\n\u003cli\u003eCompatible with mini-prisms for any major total station (Trimble, Leica, Topcon, and others)\u003c\/li\u003e\n\u003cli\u003eEngineered to support First Order, Class I (1:100,000) relative closure standards\u003c\/li\u003e\n\u003cli\u003eShips in an orange weatherproof field case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether you're locating hundreds of anchor bolts on a prefabricated steel structure, a cell tower, or a bridge foundation, the SDCJ turns a \"good\" as-built into a certified one. Every unit is hand-inspected and serialized with a Certificate of Accuracy before it leaves the shop.\u003c\/p\u003e\n\u003ch3\u003e\u003cem\u003e\u003cstrong\u003ePrism not included. Lead times are currently up to 2–3 weeks. For fleet or quantity orders, contact us directly. Free shipping on all U.S. orders.\u003c\/strong\u003e \u003c\/em\u003e\u003c\/h3\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical Resources\u003c\/h3\u003e\n\u003cp\u003eDownload the full specs and documentation:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1002\/9206\/7693\/files\/SDCJ-1_Technical_Data_Sheet_v2.pdf?v=1786107277\" rel=\"noopener\" target=\"_blank\"\u003eTechnical Data Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1002\/9206\/7693\/files\/SDCJ-1_Quick_Start_Guide_v2.pdf?v=1786107277\" rel=\"noopener\" target=\"_blank\"\u003eQuick Start Guide (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1002\/9206\/7693\/files\/SDCJ-1_Warranty_and_Safety_Manual_v2.pdf?v=1786107277\" rel=\"noopener\" target=\"_blank\"\u003eWarranty \u0026amp; Safety Manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1002\/9206\/7693\/files\/SDCJ-1_Certificate_of_Accuracy_v2.pdf?v=1786107277\" rel=\"noopener\" target=\"_blank\"\u003eCertificate of Accuracy (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow do you find the center of a bent or leaning anchor bolt?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eWithout a tool, crews eyeball the center and plumb the rod by hand, which introduces error that often isn't caught until the raw data reaches the back office. The Shields Dead Center Jig (SDCJ) removes the guesswork by seating on the bolt and establishing the same fixed dead-center point every time, so every crew member captures the same location.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat tool do surveyors use for anchor bolt as-builts?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eThe Shields Dead Center Jig (SDCJ) is purpose-built for anchor bolt as-builts. It fits bolts from 1\/2 inch to 2 inches in diameter, adjusts in 1\/8 inch increments, and includes a laser plummet and a 5\/8-11 to 1\/4-20 mini-prism adapter compatible with any major total station (Trimble, Leica, Topcon, and others).\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow accurate is the SDCJ?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eIt is engineered to support First Order, Class I (1:100,000) relative closure. Each unit is hand-inspected and serialized with a Certificate of Accuracy before it leaves the shop.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow much does the SDCJ cost?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eThe SDCJ is $880. At roughly $300 to $450 in crew time per avoided return trip, it typically pays for itself in about two to three prevented go-backs.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat anchor bolt sizes does it fit?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eIt fits anchor bolts from 1\/2 inch to 2 inches in diameter, adjustable in 1\/8 inch increments, and handles up to 12 inches of bolt stick-up above the concrete.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat is it made of, and is it made in the USA?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes — it is designed and manufactured in the USA. The body is precision-machined 6061-T6 aluminum with corrosion-resistant 304\/316 stainless steel hardware and high-impact ASA plastic bottom plates.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat comes in the kit?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eEach kit includes the main jig body, laser plummet, plumbing plate, shim pack, hex keys, interchangeable ASA-plastic bottom plates, a 5\/8-11 to 1\/4-20 mini-prism adapter, and an orange weatherproof field case. The prism is not included, and lead times are currently up to 2–3 weeks.\u003c\/p\u003e\u003c\/details\u003e\n\u003cp\u003e\u003cstrong\u003eSee it in the field:\u003c\/strong\u003e \u003ca href=\"\/blogs\/field-notes\/one-jig-two-jobs-as-builts-and-layout\"\u003eOne Jig, Two Jobs: As-Builts and Layout\u003c\/a\u003e.\u003c\/p\u003e","brand":"Shields Precision Solutions","offers":[{"title":"Default Title","offer_id":53356968640877,"sku":"SP-DCJ-0010","price":880.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1002\/9206\/7693\/files\/Anchor_Bolt_Locating_Jig_31.jpg?v=1779386192"},{"product_id":"precision-corner-offset-land-survey","title":"Precision Corner Offset (PCO) — 90° Corner Location Jig for Land Surveying","description":"\u003cp\u003e\u003cstrong\u003eLocate any 90° corner that needs surveying — building corners, structural tie-in points, masonry walls, foundations, bridges, and piles — from a fixed, repeatable offset.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf a crew can't get a clean shot on a corner, the Precision Corner Offset gives them an accurate, repeatable position \u003cem\u003eand\u003c\/em\u003e angle from a known offset. It was born on a job locating thousands of batter and plumb piles, where Dan Shields built two metal prototypes to do it at a 3″×3″ offset. This is the production version — refined, lighter, and now with selectable offsets — and the same method works on homes, garages, shops, bridges, and heavy-civil structures alike.\u003c\/p\u003e\n\u003cp\u003eAttach your mini-prism to the top of the ribbed grab handle, seat the corner in the machined 90° aluminum pocket, and store the point. Because the offset is a known, machined geometry, the true corner position and angle back out cleanly — every time, across every crew.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy crews use it\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLocates any surveyed 90° corner — buildings, structures, walls, foundations, bridges, and piles — from one repeatable setup: position, plumbness, and batter angle.\u003c\/li\u003e\n\u003cli\u003eSelectable \u003cstrong\u003e1″×1″, 2″×2″, or 3″×3″\u003c\/strong\u003e offset to clear obstructions or match your workflow.\u003c\/li\u003e\n\u003cli\u003eHigh-strength ASA frame and ribbed grab handle; \u003cstrong\u003e6061-T6 aluminum\u003c\/strong\u003e corner plates that hold their geometry in the field.\u003c\/li\u003e\n\u003cli\u003eYour standard mini-prism mounts right on top — \u003cstrong\u003e5\/8-11\u003c\/strong\u003e thread, no proprietary target required.\u003c\/li\u003e\n\u003cli\u003eEngineered and manufactured in the USA, engineer-direct.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame \u0026amp; grab handle:\u003c\/strong\u003e high-strength ASA plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner plates (90° pocket):\u003c\/strong\u003e 6061-T6 aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFasteners:\u003c\/strong\u003e 18-8 stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable offset:\u003c\/strong\u003e 1″×1″, 2″×2″, 3″×3″\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrism mount:\u003c\/strong\u003e 5\/8-11 thread\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall size:\u003c\/strong\u003e approx. 8.4″ × 7.0″ × 5.0″\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMade in the USA of American materials. Approx. 2-week lead time. Free shipping.\u003c\/p\u003e\n\u003cp\u003ePrism not included.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eComing soon: an inside-corner model that reads inside corners as cleanly as this one reads outside corners.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical Resources\u003c\/h3\u003e\n\u003cp\u003eDownload the full specs and documentation:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1002\/9206\/7693\/files\/Precision_Corner_Offset_PCO-1_Data_Sheet_1.pdf?v=1787169839\" rel=\"noopener\" target=\"_blank\"\u003eTechnical Data Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1002\/9206\/7693\/files\/Precision_Corner_Offset_PCO-1_User_Guide.pdf?v=1787921109\" rel=\"noopener\" target=\"_blank\"\u003eUser Guide (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSee it in the field:\u003c\/strong\u003e \u003ca href=\"\/blogs\/field-notes\/survey-outside-corner-offset\"\u003eHow to Survey an Outside Corner Without Guessing the Offset\u003c\/a\u003e.\u003c\/p\u003e","brand":"Shields Precision Solutions","offers":[{"title":"Default Title","offer_id":53752338284909,"sku":"PCO-1","price":214.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1002\/9206\/7693\/files\/shields-precision-corner-offset-pco-1-survey-jig.jpg?v=1787873134"},{"product_id":"land-survey-stake-out-boot","title":"Land Survey Stake-Out Boot","description":"\u003cp\u003eThis Land Survey Stake-Out Boot is a valuable tool for staking and surveying, as it easily slides onto the end of a rod and allows for quick and accurate grading. Made in the USA with durable ASA material, it is perfect for field use. Keep track of staked elevations and locations for digital record-keeping in the field. See the in-use pictures below.\u003c\/p\u003e\n\u003cp\u003eFree shipping included!\u003c\/p\u003e\n\u003c!----\u003e","brand":"Shields Precision Solutions","offers":[{"title":"black","offer_id":53752338350445,"sku":null,"price":29.99,"currency_code":"USD","in_stock":true},{"title":"orange","offer_id":53752338383213,"sku":null,"price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1002\/9206\/7693\/files\/PXL_20211123_184241643.jpg?v=1787054861"},{"product_id":"precision-offset-plo-3-perpendicular-line-offset-jig-for-land-surveying","title":"Precision Offset (PLO) — 3″ Perpendicular Line Offset Jig for Land Surveying","description":"\u003cp\u003e\u003cstrong\u003eLocate any line that needs surveying — walls, edge of slab, footings, any flat face — from a fixed, repeatable 3″ perpendicular offset.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen a crew can't get a clean shot on a wall or slab edge, the Precision Offset gives them an accurate, repeatable position a known 3″ off the face. Store two points along the line and you have the line itself; cross it with a second line and you have the intersection — an inside corner on an odd angle or an outside corner on any angle, it backs out cleanly either way. It's the line-and-edge companion to the \u003cstrong\u003ePrecision Corner Offset (PCO)\u003c\/strong\u003e, built by Dan Shields from the same field-proven method.\u003c\/p\u003e\n\u003cp\u003eSeat the flat reference face against any flat surface, mount your mini-prism on the ribbed grab handle, and store the point. Because the 3″ offset is a known, machined geometry perpendicular to the face, the true line position pulls in cleanly — every time, across every crew.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy crews use it\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDefines any surveyed line — walls, slab edges, footings, any flat face — from two repeatable points off a known offset.\u003c\/li\u003e\n\u003cli\u003eCross two lines to create an intersection: inside corners on odd angles, outside corners on any angle.\u003c\/li\u003e\n\u003cli\u003eFixed \u003cstrong\u003e3″ perpendicular offset\u003c\/strong\u003e to clear the face and keep the geometry known.\u003c\/li\u003e\n\u003cli\u003eHigh-strength ASA frame and ribbed grab handle; \u003cstrong\u003e6061-T6 aluminum\u003c\/strong\u003e reference plates that hold their geometry in the field.\u003c\/li\u003e\n\u003cli\u003eYour standard mini-prism mounts right on top — \u003cstrong\u003e5\/8-11\u003c\/strong\u003e thread, no proprietary target required.\u003c\/li\u003e\n\u003cli\u003eEngineered and manufactured in the USA, engineer-direct.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame \u0026amp; grab handle:\u003c\/strong\u003e high-strength ASA plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference plates:\u003c\/strong\u003e 6061-T6 aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFasteners:\u003c\/strong\u003e 18-8 stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOffset:\u003c\/strong\u003e 3″ perpendicular to the reference face\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrism mount:\u003c\/strong\u003e 5\/8-11 thread\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMade in the USA of American materials. Approx. 2-week lead time. Free shipping.\u003c\/p\u003e\n\u003cp\u003ePrism not included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSee it in the field:\u003c\/strong\u003e \u003ca href=\"\/blogs\/field-notes\/offsetting-a-line-you-cant-occupy\"\u003eOffsetting a Line You Can't Occupy\u003c\/a\u003e.\u003c\/p\u003e","brand":"Shields Precision Solutions","offers":[{"title":"Default Title","offer_id":53943674896749,"sku":"PLO-1","price":169.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1002\/9206\/7693\/files\/shields-precision-offset-plo-1-line-survey-jig.jpg?v=1789073294"}],"url":"https:\/\/shieldsprecision.com\/collections\/survey-tools.oembed","provider":"Shields Precision Solutions","version":"1.0","type":"link"}