![SPI - 0.0003 Squareness Per Inch, 2-4-6 Block Setup Block - 5/16 - 18 Inch Tapped Hole Size, 55-60 Rc Hardness - Top Tool & Supply](http://toptoolandsupply.com/cdn/shop/products/7646740-21_1024x1024.jpg?v=1585885575)
SPI - 0.0003 Squareness Per Inch, 2-4-6 Block Setup Block - 5/16 - 18 Inch Tapped Hole Size, 55-60 Rc Hardness
2% Off All Online Orders
Use Code: 2%OFF
Best Price Guarantee - Email Us A Better Published Price and We'll Beat It
2% Off All Online Orders
Use Code: 2%OFF
Best Price Guarantee - Email Us A Better Published Price and We'll Beat It