Technical References and Shop Practice

Tech help for construction tradesmen and industrial maintenance workers.

Pipe and Mechanical

• Tap size Standard Tap and Drill Size Chart Recommended tap drill to use for 75% depth.
• Drill Size for Pipe Taps Recommended drill size for pipe taps 1/8 to 2 inches.
• Table Steam pressure table

Shop Math

• Temperature Conversion Chart
• Trignonometric Tables
• English to Metric Conversion
• Decimal Conversion Decimal to Fraction to Millimeter Conversion
• Inch Conversion Inch to Decimal Conversion

Electrical

• (External Link) Tricks of the Electrical Trade
• (External Link) Industrial Electrical &Maintenance Forum
• Electrical Power and Ohms Law Formulas
• Resistor Color Code

Conduit

• Chicago Bender Offset Table
• Conduit Bender Table Centerline Radius of Greenlee Benders
• Electrical Conduit OD
• Electrical Conduit Weight
• Thread Protector Color Code
• Hole saw Size for Conduit Entrance

Equipment and Rigging

• Crane Signals Hand signals and safe operation of cranes.
• Knot tying tutorials