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{"AddThisServiceButtonMeta":"","add_this":[{"annotation":"","service":"facebook"},{"annotation":"","service":"email"},{"annotation":"","service":"print"}],"add_to_wishlist_url":"/wishlist.php?action=add&product_id=104918","availability":"","brand":{"name":"SPI Swiss Precision Instruments","url":"https://www.penntoolco.com/spi-swiss-precision-instruments-1/"},"call_for_price":"Call for Pricing","can_purchase":false,"category":["Brands/SPI Swiss Precision Instruments/Precision Measuring Tools","Brands/SPI Swiss Precision Instruments/Precision Measuring Tools/Squares, Protractors, and Rules","Precision Measuring Tools","Precision Measuring Tools/Squares, Protractors, and Rules"],"description":"<p><a href=\"https://www.penntoolco.com/spi-swiss-precision-instruments/\" target=\"_blank\"><img title=\"SPI\" src=\"https://cdn1.bigcommerce.com/n-yp39j5/4s9liwcv/product_images/uploaded_images/spi-logo-newptdesc.jpg\" alt=\"SPI\" width=\"165\" height=\"64\" /></a></p>\r\n<h2><span style=\"color: #000080;\">SPI Spindle Squares</span></h2>\r\n<p><br /><span style=\"font-size: medium;\">3/8 Inch Shank Diameter, Drop Indicator Spindle Squares</span><br /><span style=\"font-size: medium;\"> For Use with Dial Indicators</span></p>\r\n<p><span style=\"font-size: medium;\">A simple solution to squaring your machine. Just zero indicators on flat surface (like a granite plate), install in milling machine spindle, bring the spindle down to the table and adjust the head until both indicators read the same.</span></p>\r\n<p><span style=\"font-size: medium; color: #000080;\"><strong>Features:</strong></span></p>\r\n<ul>\r\n<li><span style=\"font-size: medium;\">3/8\" shank.</span></li>\r\n<li><span style=\"font-size: medium;\">Fully assembled with indicators mounted and ready for use.</span></li>\r\n<li><span style=\"font-size: medium;\">No more tramming or split reading, compensating for loose, worn gears or mirrors.</span></li>\r\n<li><span style=\"font-size: medium;\">Can also be used with a sine bar or protractor to set angle.</span></li>\r\n<li><span style=\"font-size: medium;\">Constructed of steel with precision ground contact points for durability and accuracy</span></li>\r\n<li><span style=\"font-size: medium;\">Mini inch model designed for mini-milling or table-top machines and comes in leather pouch.</span></li>\r\n<li><span style=\"font-size: medium;\">All other models furnished in fitted case.</span></li>\r\n</ul>","detail_messages":"","gift_wrapping_available":false,"gtin":null,"id":"104918","images":[{"alt":"20-910-6 - Standard Inch Model","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104918/479292/20-910-6-SPI-Spindle-Square-Standard-Inch-Model-pic1__24928.1610387778.jpg?c=2"},{"alt":"20-910-6 - Standard Inch Model","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104918/479293/20-910-6-SPI-Spindle-Square-Standard-Inch-Model-pic4__60058.1610387305.jpg?c=2"},{"alt":"20-910-6 - Standard Inch Model","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104918/479295/20-910-6-SPI-Spindle-Square-Standard-Inch-Model-pic3__72826.1610387306.jpg?c=2"},{"alt":"20-910-6 - Standard Inch Model","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104918/479294/20-910-6-SPI-Spindle-Square-Standard-Inch-Model-pic2__31120.1610387308.jpg?c=2"},{"alt":"91-330-1 - Metric Model","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104918/479301/91-330-1-SPI-Spindle-Square-Metric-Model__64392.1610387758.jpg?c=2"},{"alt":"91-331-9 - Mini Inch Model","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104918/479287/91-331-9-SPI-Spindle-Square-Mini-Inch-Model__41781.1610386925.jpg?c=2"},{"alt":"91-332-7 - Tool Grade Inch Model","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104918/479297/91-332-7-SPI-Spindle-Square-Tool-Grade-Inch-Model__43701.1610387512.jpg?c=2"},{"alt":"SPI Spindle Squares","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104918/18422/imageRendering__82130.1610387776.jpg?c=2"}],"main_image":{"alt":"20-910-6 - Standard Inch Model","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104918/479292/20-910-6-SPI-Spindle-Square-Standard-Inch-Model-pic1__24928.1610387778.jpg?c=2"},"max_purchase_quantity":0,"meta_description":"","meta_keywords":"","min_purchase_quantity":0,"mpn":null,"num_reviews":0,"options":[],"page_title":"","rating":0,"related_products":[{"add_to_cart_url":"https://www.penntoolco.com/cart.php?action=add&product_id=104901","add_to_wishlist_url":"/wishlist.php?action=add&product_id=104901","availability":"","brand":{"name":"SPI Swiss Precision Instruments"},"category":[],"custom_fields":[{"id":293770,"name":"Graduation","value":"0.001\""}],"date_added":"23rd Oct 2014","demo":false,"has_options":false,"id":104901,"image":{"alt":"SPI Spindle Square, Standard Inch Model, 0.001\" Graduation - 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91-332-7\r\n3/8 Inch Shank Diameter, Drop Indicator Spindle Square For Use with Dial Indicators\r\nA simple solution to...","url":"https://www.penntoolco.com/spi-spindle-square-tool-grade-inch-model-0-0005-graduation-91-332-7/","weight":{"formatted":"2.00 LBS","value":2}},{"add_to_cart_url":"https://www.penntoolco.com/cart.php?action=add&product_id=104910","add_to_wishlist_url":"/wishlist.php?action=add&product_id=104910","availability":"","brand":{"name":"SPI Swiss Precision Instruments"},"category":[],"custom_fields":[{"id":320193,"name":"Graduation","value":"0.0005\""}],"date_added":"23rd Oct 2014","demo":false,"has_options":false,"id":104910,"image":{"alt":"SPI Spindle Square, Mini Inch Model - 91-331-9","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104910/479286/91-331-9-SPI-Spindle-Square-Mini-Inch-Model__57739.1610386878.jpg?c=2"},"images":[{"alt":"SPI Spindle Square, Mini Inch Model - 91-331-9","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104910/479286/91-331-9-SPI-Spindle-Square-Mini-Inch-Model__57739.1610386878.jpg?c=2"},{"alt":"SPI Spindle Square, Mini Inch Model - 91-331-9","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104910/100918/imageRendering__82130__09558.1418123414.jpg?c=2"}],"low_stock_level":null,"name":"SPI Spindle Square, Mini Inch Model - 91-331-9","num_reviews":null,"pre_order":false,"price":{"tax_label":"Tax","without_tax":{"currency":"USD","formatted":"$242.48","value":242.48}},"qty_in_cart":0,"rating":null,"show_cart_action":true,"sku":"91-331-9","stock_level":null,"summary":"ID: 104910\r\n\r\nSPI Spindle Square, Mini Inch Model - 91-331-9\r\n3/8 Inch Shank Diameter, Drop Indicator Spindle Square For Use with Dial Indicators\r\nMini Inch Model with 0.0005\" Graduation\r\nA simple...","url":"https://www.penntoolco.com/spi-spindle-square-mini-inch-model-91-331-9/","weight":{"formatted":"5.00 LBS","value":5}},{"add_to_cart_url":"https://www.penntoolco.com/cart.php?action=add&product_id=104914","add_to_wishlist_url":"/wishlist.php?action=add&product_id=104914","availability":"","brand":{"name":"SPI Swiss Precision Instruments"},"category":[],"custom_fields":[{"id":320196,"name":"Graduation","value":"0.01 mm"}],"date_added":"23rd Oct 2014","demo":false,"has_options":false,"id":104914,"image":{"alt":"SPI Spindle Square, Metric Model, 0.01mm Graduation - 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91-330-1\r\n3/8 Inch Shank Diameter, Drop Indicator Spindle Square For Use with Dial Indicators\r\nA simple solution to squaring your...","url":"https://www.penntoolco.com/spi-spindle-square-metric-model-0-01mm-graduation-91-330-1/","weight":{"formatted":"2.00 LBS","value":2}}],"shipping":[],"shipping_messages":[],"similar_by_views":[{"add_to_cart_url":"https://www.penntoolco.com/cart.php?action=add&product_id=104901","add_to_wishlist_url":"/wishlist.php?action=add&product_id=104901","availability":"","brand":{"name":"SPI Swiss Precision Instruments"},"category":[],"custom_fields":[{"id":293770,"name":"Graduation","value":"0.001\""}],"date_added":"23rd Oct 2014","demo":false,"has_options":false,"id":104901,"image":{"alt":"SPI Spindle Square, Standard Inch Model, 0.001\" Graduation - 20-910-6","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104901/479290/20-910-6-SPI-Spindle-Square-Standard-Inch-Model-pic1__85470.1610387251.jpg?c=2"},"images":[{"alt":"SPI Spindle Square, Standard Inch Model, 0.001\" Graduation - 20-910-6","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104901/479290/20-910-6-SPI-Spindle-Square-Standard-Inch-Model-pic1__85470.1610387251.jpg?c=2"},{"alt":"SPI Spindle Square, Standard Inch Model, 0.001\" Graduation - 20-910-6","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104901/100916/imageRendering__82130__39882.1418123410.jpg?c=2"},{"alt":"SPI Spindle Square, Standard Inch Model, 0.001\" Graduation - 20-910-6","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104901/479291/20-910-6-SPI-Spindle-Square-Standard-Inch-Model-pic4__07113.1610387249.jpg?c=2"},{"alt":"SPI Spindle Square, Standard Inch Model, 0.001\" Graduation - 20-910-6","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104901/479288/20-910-6-SPI-Spindle-Square-Standard-Inch-Model-pic3__68463.1610387238.jpg?c=2"},{"alt":"SPI Spindle Square, Standard Inch Model, 0.001\" Graduation - 20-910-6","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104901/479289/20-910-6-SPI-Spindle-Square-Standard-Inch-Model-pic2__77024.1610387238.jpg?c=2"}],"low_stock_level":null,"name":"SPI Spindle Square, Standard Inch Model, 0.001\" Graduation - 20-910-6","num_reviews":null,"pre_order":false,"price":{"tax_label":"Tax","without_tax":{"currency":"USD","formatted":"$236.29","value":236.29}},"qty_in_cart":0,"rating":null,"show_cart_action":true,"sku":"20-910-6","stock_level":null,"summary":"ID: 104901\r\n\r\nSPI Spindle Square, Standard Inch Model, 0.001\" Graduation - 20-910-6\r\n3/8 Inch Shank, Drop Indicator Spindle Square For Use with All Machines\r\nA simple solution to squaring your...","url":"https://www.penntoolco.com/spi-spindle-square-standard-inch-model-0-001-graduation-20-910-6/","weight":{"formatted":"2.00 LBS","value":2}},{"add_to_cart_url":"https://www.penntoolco.com/cart.php?action=add&product_id=104906","add_to_wishlist_url":"/wishlist.php?action=add&product_id=104906","availability":"","brand":{"name":"SPI Swiss Precision Instruments"},"category":[],"custom_fields":[{"id":320194,"name":"Graduation","value":"0.0005\""}],"date_added":"23rd Oct 2014","demo":false,"has_options":false,"id":104906,"image":{"alt":"SPI Spindle Square, Tool Grade Inch Model, 0.0005\" Graduation - 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91-332-7\r\n3/8 Inch Shank Diameter, Drop Indicator Spindle Square For Use with Dial Indicators\r\nA simple solution to...","url":"https://www.penntoolco.com/spi-spindle-square-tool-grade-inch-model-0-0005-graduation-91-332-7/","weight":{"formatted":"2.00 LBS","value":2}},{"add_to_cart_url":"https://www.penntoolco.com/cart.php?action=add&product_id=104910","add_to_wishlist_url":"/wishlist.php?action=add&product_id=104910","availability":"","brand":{"name":"SPI Swiss Precision Instruments"},"category":[],"custom_fields":[{"id":320193,"name":"Graduation","value":"0.0005\""}],"date_added":"23rd Oct 2014","demo":false,"has_options":false,"id":104910,"image":{"alt":"SPI Spindle Square, Mini Inch Model - 91-331-9","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104910/479286/91-331-9-SPI-Spindle-Square-Mini-Inch-Model__57739.1610386878.jpg?c=2"},"images":[{"alt":"SPI Spindle Square, Mini Inch Model - 91-331-9","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104910/479286/91-331-9-SPI-Spindle-Square-Mini-Inch-Model__57739.1610386878.jpg?c=2"},{"alt":"SPI Spindle Square, Mini Inch Model - 91-331-9","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/104910/100918/imageRendering__82130__09558.1418123414.jpg?c=2"}],"low_stock_level":null,"name":"SPI Spindle Square, Mini Inch Model - 91-331-9","num_reviews":null,"pre_order":false,"price":{"tax_label":"Tax","without_tax":{"currency":"USD","formatted":"$242.48","value":242.48}},"qty_in_cart":0,"rating":null,"show_cart_action":true,"sku":"91-331-9","stock_level":null,"summary":"ID: 104910\r\n\r\nSPI Spindle Square, Mini Inch Model - 91-331-9\r\n3/8 Inch Shank Diameter, Drop Indicator Spindle Square For Use with Dial Indicators\r\nMini Inch Model with 0.0005\" Graduation\r\nA simple...","url":"https://www.penntoolco.com/spi-spindle-square-mini-inch-model-91-331-9/","weight":{"formatted":"5.00 LBS","value":5}},{"add_to_cart_url":"https://www.penntoolco.com/cart.php?action=add&product_id=104914","add_to_wishlist_url":"/wishlist.php?action=add&product_id=104914","availability":"","brand":{"name":"SPI Swiss Precision Instruments"},"category":[],"custom_fields":[{"id":320196,"name":"Graduation","value":"0.01 mm"}],"date_added":"23rd Oct 2014","demo":false,"has_options":false,"id":104914,"image":{"alt":"SPI Spindle Square, Metric Model, 0.01mm Graduation - 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91-330-1\r\n3/8 Inch Shank Diameter, Drop Indicator Spindle Square For Use with Dial Indicators\r\nA simple solution to squaring your...","url":"https://www.penntoolco.com/spi-spindle-square-metric-model-0-01mm-graduation-91-330-1/","weight":{"formatted":"2.00 LBS","value":2}},{"add_to_cart_url":"https://www.penntoolco.com/cart.php?action=add&product_id=175116","add_to_wishlist_url":"/wishlist.php?action=add&product_id=175116","availability":"","brand":{"name":"None"},"category":[],"custom_fields":null,"date_added":"17th Jan 2015","demo":false,"has_options":false,"id":175116,"image":{"alt":"Spindle Square, All Steel - NSS-001","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/175116/126032/imageRendering__11865.1421500525.jpg?c=2"},"images":[{"alt":"Spindle Square, All Steel - NSS-001","data":"https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/{:size}/products/175116/126032/imageRendering__11865.1421500525.jpg?c=2"}],"low_stock_level":null,"name":"Spindle Square, All Steel - 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SPI Spindle Squares

Product Description

SPI

SPI Spindle Squares


3/8 Inch Shank Diameter, Drop Indicator Spindle Squares
For Use with Dial Indicators

A simple solution to squaring your machine. Just zero indicators on flat surface (like a granite plate), install in milling machine spindle, bring the spindle down to the table and adjust the head until both indicators read the same.

Features:

  • 3/8" shank.
  • Fully assembled with indicators mounted and ready for use.
  • No more tramming or split reading, compensating for loose, worn gears or mirrors.
  • Can also be used with a sine bar or protractor to set angle.
  • Constructed of steel with precision ground contact points for durability and accuracy
  • Mini inch model designed for mini-milling or table-top machines and comes in leather pouch.
  • All other models furnished in fitted case.