L.S. Starrett
Starrett 52645 Model 604R Steel Rule 6 In 4R Graduations Spring Tempered Hook
$34.84
Spring-tempered steel rule measuring 6 inches with 4R graduations and a hook end. The hook catches the edge of the work for accurate end measuring without slipping. The 4R graduations read in 8ths, 16ths, 32nds, and 64ths. Used by machinists and maintenance crews for layout and measuring.