Shinwa Machinist Ruler 6" 4R Graduation 3101A Hardened Stainless Steel
SHINWA 6" Super Accurate Hardened Stainless Steel Machinist Ruler Features: Shinwa model 3101A Super accurate 6" Hardened stainless steel One side has graduations in 1/8" and 1/16". The other side has graduations in 32" and 64". Made in Japan