SA 707. Steel Internal Measuring Machine Jaws Jaws are double-ended, self-proving, assuring parallelism and squareness. Designed for use with square style gage blocks. Jaws are made of hardened steel material, 2.000" long, 1.000" wide and .500" thick. Both side edges are lapped 90º square to the gaging faces within 30 seconds of arc and extend beyond the gage blocks in the combination, thus forming a square master. Jaw and gage combination parallelism is quickly checked merely by turning the combination to the opposite side and rechecking the reading. Furnished in pairs. Square Gage Block Accessories Steel and croblox® INCH Gage Block Accessories Additional Accessories Cat. No. Description Tie Rods SA 18. 11-3/4" Solid SA 19. 15-3/4" Solid SA 20. 19-3/4" Solid Square Steel Accessories Individually or Sets as Stated Below Individual Accessories Steel Accessories Included Description Cat. No. Set SA 25.A and 81 thru 88 Block Sets when Ordered with Accessories 34 and 36 Block Sets when Ordered with Accessories Half-Round Jaw* .125 Radius SA 1. 2 .250 Radius SA 2. 2 2 Straight Jaw* .500" Thick SA 3. 2 Scriber Point SA 4. 1 1 Center Point, .100 C/L SA 5. 1 Base Block .500 Thick SA 6. 1 Knurled Screw SA 7. 2 2 Stud SA 8. 2 2 Flat Head Screw Long SA 9. 2 2 Short SA 10. 2 2 Slotted Nut SA 11. 2 2 Tie Rods 3/4" Solid SA 12. 1 1 1-1/2" Solid SA 13. 1 1 2-1/4" Solid SA 14. 1 1 3" Solid SA 15. 1 1 4-1/2-6" Adjust SA 16. 1 1 6-9" Adjust SA 17. 1 Case (CS9168) (For SA 25.A Only) *Jaws are normally used in pairs, but are ordered individually. Please order accordingly. 385 starrett.com S t arrett -W ebber G age B locks