Fowler Steel 2-4-6 Blocks 52-439-246-0 $195.99 Quantity discounts available QuantityPrice SKU: 524392460 This item is IN STOCK Quantity -+ Add to Cart Details • 2-4-6 Blocks • Parallelism within 0.0003"• Dimensional Accuracy: 0.001" • Squareness within 0.0003" per inch • Block hardened to 56 - 60 RC • Flatne... Specifications • Set of blocks with 31 holes• Dimensional Accuracy: .001″ DetailsSpecifications Back • 2-4-6 Blocks• Parallelism within 0.0003"• Dimensional Accuracy: 0.001"• Squareness within 0.0003" per inch• Block hardened to 56 - 60 RC• Flatness within 0.0002" per inch Back • Set of blocks with 31 holes• Dimensional Accuracy: .001″