You can use these calculators to calculate drill size, drilling, milling and turning horsepower, speed and feed, and more..

**Advanced Online Speed and Feed Calculator FSWizard
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Calculate cutting speeds and feeds for a variety of materials. Estimate cutting forces and determine proper cutting conditions before starting your job.

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**Drill Size Chart
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The drill size chart provides a list of standard size drill bits in several measurement systems, including fractional, metric, wire gauge number, and letter.

**Drilling Horsepower Calculator
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Calculate the horsepower required for a drilling operation based on the feed rate and tool diameter, which are used to determine the material removal rate (or metal removal rate).

**Drilling Speed and Feed Calculator
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Determine the spindle speed (RPM) and feed rate (IPM) for a drilling operation, as well as the cut time for a given cut length.

**Milling Horsepower Calculator
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Calculate the horsepower required for a milling operation based on the feed rate and depth of cut, which are used to determine the material removal rate (or metal removal rate).

**Milling Speed and Feed Calculator
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Determine the spindle speed (RPM) and feed rate (IPM) for a milling operation, as well as the cut time for a given cut length. Milling operations remove material by feeding a workpiece into a rotating cutting tool with sharp teeth, such as an end mill or face mill.

**Milling Step-over Distance Calculator
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The size of the step-over distance and the tool diameter will determine the scallop height between each step. Decreasing the step-over distance will minimize the scallop height, but will require more steps, and therefore more time, to machine the feature.

**Tap Size Chart
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The tap size chart provides a list of standard size taps, specifying the diameter and thread spacing, for fractional, metric, and screw sizes.

**Turning Horsepower Calculator
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Calculate the horsepower required for a turning operation based on the feed rate, depth of cut, and cut diameter, which will determine the material removal rate (or metal removal rate).

**Turning Speed and Feed Calculator
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Determine the spindle speed (RPM) and feed rate (IPM) for a turning operation, as well as the cut time for a given cut length. Turning operations remove material from a rotating workpiece by feeding a single-point cutting tool axially, along the side of the workpiece.

**Turning Surface Roughness Calculator
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Calculate the surface roughness for a turning operation based on the tool nose radius and the cutting feed (IPR).