12" Rigid Machinist Rule Ruler Hardened Spring Steel 4R Graduations in 1/8", 1/1

SPI 13-846-1 Rigid Steel Rule: 4R Graduation, 1" Wide x 12" Long, Satin Chrome

4 ASSORTED 12" STAINLESS STEEL RULES MITUTOYO

Starrett C604R-12 12in Rigid Chrome-Plated Steel Rule 4R Graduation

Starrett NO.4R Grad 4" Hardened Rule

🇺🇸 USA MADE 12" Long Rigid Steel Rule TEMPERED 4R graduations

Shars 12" Rigid Ruler / Rule Steel 8ths- 64ths Precision Machinist 4R !}

Made in the USA 18" Rule for a Combination Square 4R Grad Ruler Scale in EC