Scheduling Tools
◆ Future Date Calculator
+1 wk
+2 wks
+3 wks
+4 wks
+6 wks
+8 wks
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◆ Days Between Dates
Select two dates above
◆ Project Duration Estimator
Enter project parameters above
◆ Time Zone Converter
Enter a date and select target zone
Unit Conversions
◆ Length
Enter a value above
◆ Pressure
Enter a value above
◆ Temperature
Enter a value above
◆ Torque
Enter a value above
◆ Weight / Force
Enter a value above
◆ Speed / Feed Rate
Enter a value above
Fasteners & Bolt Reference
◆ Bolt Size Lookup
| Size | TPI / Pitch | Major Ø (in) | Major Ø (mm) | Tap Drill | Drill (mm) |
|---|
◆ Torque Spec Calculator
Estimates torque for common grades. Starting point only — verify with engineering data.
Select options and calculate
◆ Drill Bit Size Reference
| Designation | Decimal (in) | mm |
|---|
Machining Calculators
◆ RPM / Surface Speed
Enter values above
◆ Feed Rate (IPM / mm/min)
Enter values above
◆ Material Removal Rate
Enter values above
◆ Taper & Included Angle
Enter D, d, and L above
◆ Thread Pitch & Lead
Enter TPI or pitch above
◆ Bolt Circle / Hole Pattern
Enter BCD and hole count
Material Properties
◆ Materials Reference
| Material | lb/in³ | Tensile (ksi) | Hardness | Machinability |
|---|
◆ Metal Weight Calculator
Select shape and enter dimensions
◆ Recommended SFM Reference
| Material | HSS SFM | Carbide SFM | Notes |
|---|---|---|---|
| Aluminum | 600–1000 | 1000–3000 | Use coolant |
| Brass (free-machining) | 200–300 | 400–600 | — |
| Bronze | 80–150 | 200–400 | — |
| Cast Iron (gray) | 50–80 | 200–400 | Dry or air |
| Copper | 100–200 | 300–500 | Gums up |
| Steel 1018 (low-C) | 80–100 | 300–600 | — |
| Steel 4140 (alloy) | 50–80 | 200–400 | — |
| Stainless 304 | 30–50 | 100–200 | Flood coolant |
| Stainless 316 | 25–40 | 80–180 | Flood coolant |
| Titanium 6Al-4V | 20–40 | 80–200 | Flood coolant |
| Hardened Steel | N/A | 50–150 | CBN preferred |
| Delrin / Acetal | 400–600 | 800–1200 | Sharp tools |
| Nylon | 300–500 | 600–1000 | — |
Geometry & Trigonometry
◆ Right Triangle Solver
Enter any 2 known values (others auto-solve)
Enter any 2 known values
◆ Circle & Arc Calculator
Enter a value above
◆ Angle Converter (Deg / Rad / DMS)
Enter an angle in any field
◆ Sine Bar / Sine Plate
Enter sine bar length and angle
◆ Regular Polygon
Enter N and a known value
◆ Dovetail / Undercut Calculator
Measure with gauge pins to verify dovetail width
Enter angle, pin size, and dimensions