{"title":"Master-Sine Sine Plates","description":"\u003cp\u003eSuburban Tool Master-Sine™ sine plates set precise angles for grinding, inspection, and layout using proven sine-bar geometry and gage blocks. Ground and hardened for lasting accuracy, each sine plate lets machinists dial in exact angles quickly and repeatably. Pair it with our sine plate calculator to find your gage stack.\u003c\/p\u003e\u003cp\u003eMade in the USA, these sine plates are built for tool \u0026amp; die makers, QC inspectors, and grinding shops that demand true angular setups. Available in multiple sizes to suit small precision work or larger workpieces.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrecision sine plate for accurate angle setting\u003c\/li\u003e\n\u003cli\u003eSine-bar geometry with gage-block stack\u003c\/li\u003e\n\u003cli\u003eGround and hardened for repeatable QC and grinding\u003c\/li\u003e\n\u003cli\u003eMade in USA sine plates by Suburban Tool\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- yt-embed:START --\u003e\n\u003cdiv class=\"st-video-section\" style=\"margin-top:2rem\"\u003e\n\u003ch2 style=\"margin:0 0 1rem\"\u003eVideos\u003c\/h2\u003e\n\u003cdiv style=\"display:grid;gap:1.25rem;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))\"\u003e\n\u003cfigure style=\"margin:0\"\u003e\n\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:8px;background:#000\"\u003e\n\u003ciframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/qmiHmSZEKvs\" title=\"How to Set a Sine Plate or Sine Bar\" loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\u003cfigcaption style=\"margin-top:.5rem;font-size:.9rem;line-height:1.3;color:#555\"\u003eHow to Set a Sine Plate or Sine Bar\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cfigure style=\"margin:0\"\u003e\n\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:8px;background:#000\"\u003e\n\u003ciframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/crcGylCdzTY\" title=\"Sine Plate Comparison - Suburban vs EX-CELL-O vs Taft-Peirce\" loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\u003cfigcaption style=\"margin-top:.5rem;font-size:.9rem;line-height:1.3;color:#555\"\u003eSine Plate Comparison - Suburban vs EX-CELL-O vs Taft-Peirce\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cfigure style=\"margin:0\"\u003e\n\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:8px;background:#000\"\u003e\n\u003ciframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/VBAdZwM4Ei8\" title=\"Free Online Calculator for setting a Sine Plate or Sine Bar from Suburban Tool\" loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\u003cfigcaption style=\"margin-top:.5rem;font-size:.9rem;line-height:1.3;color:#555\"\u003eFree Online Calculator for setting a Sine Plate or Sine Bar from Suburban Tool\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- yt-embed:END --\u003e","products":[{"product_id":"b-3-sp_master-sine_sine_plates","title":"Sine Plate, 4\" × 4\" (B-3-SP)","description":"\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable class=\"spec\"\u003e\n\u003ctr\u003e\n\u003cth\u003eL\u003c\/th\u003e\n\u003ctd\u003e4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eW\u003c\/th\u003e\n\u003ctd\u003e4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eH\u003c\/th\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eC\u003c\/th\u003e\n\u003ctd\u003e3\" ±0.0002\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSQUARE \u0026amp; PARALLEL\u003c\/th\u003e\n\u003ctd\u003e0.0002\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (lb)\u003c\/th\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe Suburban Tool B-3-SP is a compact 4\" x 4\" Master-Sine sine plate built for precise angular setups on small, high-accuracy parts in the toolroom and inspection area.\u003c\/p\u003e\u003cp\u003eMade of steel and hardened to Rc 58-60, the B-3-SP stands up to repeated toolroom use. Its roll bar and hinge are hardened steel, ground and lapped for straightness and roundness, while the swivel block delivers full face contact with your gage blocks to hold the stack securely. An exclusive locking device inside the hinge roll provides a positive, expanding lock, pulling the top plate down onto the gage blocks without distortion.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSteel construction hardened to Rc 58-60 for durability\u003c\/li\u003e\n\u003cli\u003eRoll bar and hinge ground and lapped for straightness and roundness\u003c\/li\u003e\n\u003cli\u003eSwivel block gives full face contact to hold gage blocks securely\u003c\/li\u003e\n\u003cli\u003ePositive expanding hinge lock seats the top plate without distortion\u003c\/li\u003e\n\u003cli\u003e1\/4-20 tapped holes for easy part and fixture mounting\u003c\/li\u003e\n\u003cli\u003eMade in the USA by Suburban Tool\u003c\/li\u003e\n\u003cli\u003eB-3-SP and B-5-SP have 1\/4-20 tapped holes. The remaining models have 5\/16-18.\u003c\/li\u003e\n\u003cli\u003eSide and back rail included.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c!-- st-feat --\u003e\u003cp\u003eAvailable with No Certification, Short Form, or Long Form Certification.\u003c\/p\u003e","brand":"Suburban Tool Inc.","offers":[{"title":"No Certification","offer_id":46757608587416,"sku":"B-3-SP","price":2403.45,"currency_code":"USD","in_stock":true},{"title":"Short Form Certification","offer_id":46757608620184,"sku":null,"price":2428.45,"currency_code":"USD","in_stock":true},{"title":"Long Form Certification","offer_id":46757608652952,"sku":null,"price":2564.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7412\/7768\/files\/B-5-SP_20Master-Sine_20Sine_20Plate_77ac51ef-7730-483b-a340-90423df02670.jpg?v=1781026395"},{"product_id":"b-5_sp_master-sine_sine_plates","title":"Sine Plate, 6-1\/2\" × 6-1\/2\" (B-5-SP)","description":"\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable class=\"spec\"\u003e\n\u003ctr\u003e\n\u003cth\u003eL\u003c\/th\u003e\n\u003ctd\u003e6-1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eW\u003c\/th\u003e\n\u003ctd\u003e6-1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eH\u003c\/th\u003e\n\u003ctd\u003e2-1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eC\u003c\/th\u003e\n\u003ctd\u003e5\" ±0.0002\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSQUARE \u0026amp; PARALLEL\u003c\/th\u003e\n\u003ctd\u003e0.0002\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (lb)\u003c\/th\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe B-5-SP 6-1\/2\" × 6-1\/2\" Sine Plate is a Master-Sine precision tool from Suburban Tool, engineered for accurate gage-block angle setups in grinding, inspection, and toolroom work. Made of steel hardened to Rc 58-60, it stands up to demanding daily shop use.\u003c\/p\u003e\u003cp\u003eIts 1\/4-20 tapped holes make workholding and fixturing straightforward, while the hardened, ground-and-lapped roll bar ensures reliable, repeatable positioning.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSteel construction hardened to Rc 58-60 for durability and wear resistance\u003c\/li\u003e\n\u003cli\u003e1\/4-20 tapped holes for convenient part clamping and fixturing\u003c\/li\u003e\n\u003cli\u003eRoll bar ground and lapped for straightness and roundness\u003c\/li\u003e\n\u003cli\u003eSwivel block provides full-face contact with gage blocks, holding them securely\u003c\/li\u003e\n\u003cli\u003eExclusive internal locking device pulls the top plate down without distortion\u003c\/li\u003e\n\u003cli\u003eMade in the USA by Suburban Tool\u003c\/li\u003e\n\u003cli\u003eSide and back rail included.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c!-- st-feat --\u003e\u003cp\u003eAvailable with No Certification, Short Form, or Long Form Certification.\u003c\/p\u003e","brand":"Suburban Tool Inc.","offers":[{"title":"No Certification","offer_id":46757609504920,"sku":"B-5-SP","price":3456.6,"currency_code":"USD","in_stock":true},{"title":"Short Form Certification","offer_id":46757609537688,"sku":null,"price":3481.6,"currency_code":"USD","in_stock":true},{"title":"Long Form Certification","offer_id":46757609570456,"sku":null,"price":3617.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7412\/7768\/files\/B-5-SP_20Master-Sine_20Sine_20Plate_42974dce-4a67-449a-aa28-065d5bebdbdf.jpg?v=1781026412"},{"product_id":"b-10-sp_master-sine_sine_plates","title":"Sine Plate, 7-3\/4\" × 12-1\/2\" (B-10-SP)","description":"\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable class=\"spec\"\u003e\n\u003ctr\u003e\n\u003cth\u003eL\u003c\/th\u003e\n\u003ctd\u003e12-1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eW\u003c\/th\u003e\n\u003ctd\u003e7-3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eH\u003c\/th\u003e\n\u003ctd\u003e2-7\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eC\u003c\/th\u003e\n\u003ctd\u003e10\" ±0.0002\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSQUARE \u0026amp; PARALLEL\u003c\/th\u003e\n\u003ctd\u003e0.0003\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (lb)\u003c\/th\u003e\n\u003ctd\u003e55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe B-10-SP 7-3\/4\" × 12-1\/2\" Sine Plate is a Master-Sine precision tool from Suburban Tool, engineered for accurate gage-block angle setups in surface grinding, inspection, and toolroom work. Made of steel hardened to Rc 58-60, it delivers lasting accuracy under daily use.\u003c\/p\u003e\u003cp\u003eIts 5\/16-18 tapped holes make clamping and fixturing simple, while the hardened, ground-and-lapped roll bar ensures dependable, repeatable positioning.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRoomy 7-3\/4\" × 12-1\/2\" surface supports a wide range of parts\u003c\/li\u003e\n\u003cli\u003eSteel hardened to Rc 58-60 for durability and wear resistance\u003c\/li\u003e\n\u003cli\u003e5\/16-18 tapped holes for convenient part clamping and fixturing\u003c\/li\u003e\n\u003cli\u003eRoll bar ground and lapped for straightness and roundness\u003c\/li\u003e\n\u003cli\u003eExclusive internal locking device pulls the top plate down without distortion\u003c\/li\u003e\n\u003cli\u003eMade in the USA by Suburban Tool\u003c\/li\u003e\n\u003cli\u003eSwivel block provides full face contact with gage blocks, keeping them securely in place.\u003c\/li\u003e\n\u003cli\u003eSide and back rail included.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c!-- st-feat --\u003e\u003cp\u003eAvailable with No Certification, Short Form, or Long Form Certification.\u003c\/p\u003e","brand":"Suburban Tool Inc.","offers":[{"title":"No Certification","offer_id":46757613731992,"sku":"B-10-SP","price":5327.7,"currency_code":"USD","in_stock":true},{"title":"Short Form Certification","offer_id":46757613764760,"sku":null,"price":5352.7,"currency_code":"USD","in_stock":true},{"title":"Long Form Certification","offer_id":46757613797528,"sku":null,"price":5488.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7412\/7768\/files\/B-10-SP_20Master-Sine_20Sine_20Plate.jpg?v=1781026345"},{"product_id":"b-15-sp_master-sine_sine_plates","title":"Sine Plate, 6-3\/4\" × 18-1\/4\" (B-15-SP)","description":"\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable class=\"spec\"\u003e\n\u003ctr\u003e\n\u003cth\u003eL\u003c\/th\u003e\n\u003ctd\u003e18-1\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eW\u003c\/th\u003e\n\u003ctd\u003e6-3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eH\u003c\/th\u003e\n\u003ctd\u003e3-3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eC\u003c\/th\u003e\n\u003ctd\u003e15\" ±0.0003\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSQUARE \u0026amp; PARALLEL\u003c\/th\u003e\n\u003ctd\u003e0.0004\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (lb)\u003c\/th\u003e\n\u003ctd\u003e98\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe B-15-SP 6-3\/4\" × 18-1\/4\" Sine Plate is a large-capacity Master-Sine tool from Suburban Tool, built for accurate gage-block angle setups on longer workpieces in grinding, layout, and inspection. Its steel body is hardened to Rc 58-60 to endure heavy toolroom duty.\u003c\/p\u003e\u003cp\u003eThe 5\/16-18 tapped holes simplify clamping and fixturing, while the hardened, ground-and-lapped roll bar keeps positioning precise and repeatable.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExtended 6-3\/4\" × 18-1\/4\" surface handles long parts and layouts\u003c\/li\u003e\n\u003cli\u003eSteel hardened to Rc 58-60 for lasting accuracy and wear resistance\u003c\/li\u003e\n\u003cli\u003e5\/16-18 tapped holes for secure workholding and fixturing\u003c\/li\u003e\n\u003cli\u003eRoll bar ground and lapped for straightness and roundness\u003c\/li\u003e\n\u003cli\u003eExclusive internal locking device pulls the top plate down without distortion\u003c\/li\u003e\n\u003cli\u003eMade in the USA by Suburban Tool\u003c\/li\u003e\n\u003cli\u003eSwivel block provides full face contact with gage blocks, keeping them securely in place.\u003c\/li\u003e\n\u003cli\u003eSide and back rail included.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c!-- st-feat --\u003e\u003cp\u003eAvailable with No Certification, Short Form, or Long Form Certification.\u003c\/p\u003e","brand":"Suburban Tool Inc.","offers":[{"title":"No Certification","offer_id":46757620875416,"sku":"B-15-SP","price":12957.0,"currency_code":"USD","in_stock":true},{"title":"Short Form Certification","offer_id":46757620908184,"sku":null,"price":12982.0,"currency_code":"USD","in_stock":true},{"title":"Long Form Certification","offer_id":46757620940952,"sku":null,"price":13118.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7412\/7768\/files\/B-5-SP_20Master-Sine_20Sine_20Plate.jpg?v=1781026373"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7412\/7768\/collections\/B-5-SP_20Master-Sine_20Sine_20Plate.jpg?v=1787250298","url":"https:\/\/atxnpj-ir.myshopify.com\/collections\/suburban-master-sine-plates.oembed","provider":"Suburban Tool Inc,","version":"1.0","type":"link"}