  The Sheet Metal/HVAC Pro Calc is designed for sheet metal workers and HVAC technicians to simplify dimensional math, geometry, trig, and has custom HVAC functions all in one simple-to-use and versatile tool for skilled tradesmen.
Features:
- Sheet metal calculations:
- X, Y, R (radius)
- Theta
- Seg Radius
- Converts between Polar and Rectangular Coordinates
- Offset functions determine "S"- shaped bends in ductwork
- Built-in HVAC formulas:
- Fan Law Functions for Test and Balance (TAB)
- Velocity
- Velocity Pressure
- Advanced construction-math functions:
- Work in and convert between building dimensional formats: feet, inch, fractions, and metric
- Calculate instant areas and volumes
- Perform square-ups, slopes, rafters, and more
- Determine regular, irregular hip/valley rafter lengths plus plumb, level, and cheek cut angles
- Perform complete stair layouts
- Find circle, column/cone surface area, and volume solutions
- Complete D:M:S to decimal degree conversions
- Additional features:
- Order of operation
- Parenthesis operators
- Square, cube, square root, and cube root calculations
- Works as a regular calculator
- Backspace key for last entry editing
Includes:
- Rugged shock, dust, and moisture-resistant Armadillo Gear case, and a protective slide cover
- Quick reference guide and complete easy-to-follow user's guide,
- 2 Long-life batteries (LR-44)
- One-year limited warranty
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