Welcome to Allen Instruments online store Welcome to our online store Keson Wood Folding Ruler SKU WR1810 $19.95 In stock Quantity: 1 Add to Bag Product Details Keson Wood Folding Ruler Designed for engineer or other measurements requiring tenths and feet. Decimal point on engineer's scale prevent reading errors. Features: Graduated in feet, 10ths and t00ths Regular outside marking in feet, inches, graduated to 1/16-inch Engineer's side has foot marks in red and decimal points Save this product for later Favorite