BIESEMEYER 50 in T Square Fence and Rail System Flex Head Wrenches A: Use Grade 5 nuts 1000173277 A: Use Grade 5 nuts and washers to match the bolt’s strength ) 90 Package Quantity 2 Package Contents Two springs with safety cables and hardware Upgrade your table saw with Delta T square 50 in fence and rail system Mounting design attaches to Delta and most other table saws with cast iron tables 1 Piece 14 gauge 2 in X 3 in rectangular steel guide tube mounted to angle iron rail Laminated 9 ply birch plywood sides are durable and non marring Fence body constructed of 14 gauge welded steel 3 Point locking system with twin hairline pointers to assure fence is parallel to blade Fence is easy gliding on nylon pads with quick action handle with magnets to hold handle up in release position Fence securely clamps to front tube only to insure perfect parallelism