-
Duct Calculation Slide Rule
$69.95
Contractor Exam Calculator
$49.95-
Duct Calculation Slide Rule
One of our most popular catalog items! This durable two sided plastic sizing wheel comes with a complete instruction manual for residential and commer…
Read More>>
Contractor Exam Calculator
The Material Estimator is one of the few calculators allowed in the exam and is designed for contractors, trades people and estimating professionals w…
Read More>>
919-297-8880