Sand, Gravel & Crushed Stone Calculator Slide Ruler Made In USA!!!
USD 14.95 USD
Specifications
| Subject Area | Concrete, Masonry |
| Country Of Manufacture | United States |
| Country/Region Of Manufacture | United States |
You are purchasing a Sand, Gravel and Crushed Stone Slide Rule Calculator. THESE ARE MADE IN USA! This will calculate/estimate the Tonnage of Material Required to cover an area. Unit is made of heavy duty plastic.