CALCULATORS/SLIDE RULES

CALCULATORS/SLIDE RULES

FEATURING OUR BEST SELLER: SCHEDULING WHEEL CHART
 

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  1. System Syzer Calculator & Instruction Book
    System Syzer Calculator & Instruction Book
    Special Price $22.45 Regular Price $24.95
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  2. Pathfinder: Directional Conversion Wheel
    Pathfinder: Directional Conversion Wheel
    Special Price $22.45 Regular Price $24.95
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  3. Scheduling Wheel Chart
    Scheduling Wheel Chart
    Special Price $9.85 Regular Price $10.95
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  4. COIL WEIGHT CALCULATOR WHEEL CHART
    COIL WEIGHT CALCULATOR WHEEL CHART
    Special Price $13.45 Regular Price $14.95
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  5. Asphalt Paving Job Calculator  Slide Rule
    Asphalt Paving Job Calculator Slide Rule
    Special Price $7.15 Regular Price $7.95
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  6. Equal Friction Duct Calculator by Carrier
    Equal Friction Duct Calculator by Carrier
    Special Price $8.95 Regular Price $9.95
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  7. Air Duct Calculator - Slide Rule
    Air Duct Calculator - Slide Rule
    Special Price $8.95 Regular Price $9.95
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  8. Structural Steel Detail Guide, Wheel Calculator
    Structural Steel Detail Guide, Wheel Calculator
    Special Price $17.95 Regular Price $19.95
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  9. Steel Weight Finder,Wheel Calculator
    Steel Weight Finder,Wheel Calculator
    Special Price $17.95 Regular Price $19.95
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  10. Duct Design Calculator Wheel
    Duct Design Calculator Wheel
    Special Price $7.15 Regular Price $7.95
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  11. SMACNA Duct System Calculator
    SMACNA Duct System Calculator
    Special Price $53.95 Regular Price $59.95
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  12. Welding Preheat Calculator
    Welding Preheat Calculator
    Special Price $9.85 Regular Price $10.95
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  13. ACCA Duct Calculation Slide Rule
    ACCA Duct Calculation Slide Rule
    Special Price $53.95 Regular Price $59.95
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  14. SHF ALIGNMENT RULER
    SHF ALIGNMENT RULER
    Special Price $7.15 Regular Price $7.95
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  15. Storm Water Calculator
    Storm Water Calculator
    Special Price $53.95 Regular Price $59.95
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  16. Dial-A-Length Rafterule
    Dial-A-Length Rafterule
    Special Price $8.95 Regular Price $9.95
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  17. Piping Selector SB
    Piping Selector SB
    Special Price $22.45 Regular Price $24.95
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  18. Piping Selector 150/300 Wheel Calculator
    Piping Selector 150/300 Wheel Calculator
    Special Price $22.45 Regular Price $24.95
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  19. Stick Calculator
    Stick Calculator
    Special Price $4.45 Regular Price $4.95
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  20. TIG Calculator
    TIG Calculator
    Special Price $4.45 Regular Price $4.95
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  21. MIG Calculator
    MIG Calculator
    Special Price $4.45 Regular Price $4.95
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  22. 3-Pack (MIG, TIG, Stick) Calculators
    3-Pack (MIG, TIG, Stick) Calculators
    Special Price $8.95 Regular Price $9.95
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  23. 2021 Natural Gas Pipe Sizing Calculator, IAPMO
    2021 Natural Gas Pipe Sizing Calculator, IAPMO
    Special Price $17.95 Regular Price $19.95
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  24. TIG Slide Rule
    TIG Slide Rule
    Special Price $7.15 Regular Price $7.95
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  25. Conduit Bending Charts
    Conduit Bending Charts
    Special Price $4.50 Regular Price $5.00
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  26. PURON® SUB COOLING CALCULATOR R 22
    PURON® SUB COOLING CALCULATOR R 22
    Special Price $11.65 Regular Price $12.95
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  27. ENGINEERING REFERENCE CHART
    ENGINEERING REFERENCE CHART
    Special Price $3.15 Regular Price $3.50
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  28. C-THRU ARCHITECTS SCALE
    C-THRU ARCHITECTS SCALE
    Special Price $6.25 Regular Price $6.95
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  29. 2012 UPC Water Pipe Sizing Calculator,IAPMO
    2012 UPC Water Pipe Sizing Calculator,IAPMO
    Special Price $17.95 Regular Price $19.95
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  30. Welding Process Calculator Set
    Welding Process Calculator Set
    Special Price $8.05 Regular Price $8.95
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  31. Lufkin Architects Tape 1/8 in. & 1/4 in.
    Lufkin Architects Tape 1/8 in. & 1/4 in.
    Special Price $40.45 Regular Price $44.95
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  32. Calculated Industries Scale Master Pro 6025
    Calculated Industries Scale Master Pro 6025
    Special Price $71.95 Regular Price $79.95
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  33. Replacement Wheel for Scale Masters
    Replacement Wheel for Scale Masters
    Special Price $10.75 Regular Price $11.95
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  34. Construction Master Pro Workbook & Study Guide
    Construction Master Pro Workbook & Study Guide
    Special Price $26.95 Regular Price $29.95
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  35. Construction Master Pro Calculator
    Construction Master Pro Calculator
    Special Price $80.95 Regular Price $89.95
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  36. ConversionCalc Plus
    ConversionCalc Plus
    Special Price $40.45 Regular Price $44.95
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  37. Building Materials Estimating Calculator
    Building Materials Estimating Calculator
    Special Price $53.95 Regular Price $59.95
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  38. HeavyCalc Pro Calculator
    HeavyCalc Pro Calculator
    Special Price $67.45 Regular Price $74.95
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  39. Sheet Metal/HVAC Pro Calculator
    Sheet Metal/HVAC Pro Calculator
    Special Price $80.95 Regular Price $89.95
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  40. ConcreteCalc Pro, Construction Master Series
    ConcreteCalc Pro, Construction Master Series
    Special Price $80.95 Regular Price $89.95
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  41. Ultra Measure Master Calculator
    Ultra Measure Master Calculator
    Special Price $40.45 Regular Price $44.95
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  42. Construction Master 5 En Espanol
    Construction Master 5 En Espanol
    Special Price $71.95 Regular Price $79.95
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