Punching Force Calculator

Avoid cracked dies and stalled rams. Calculate exact punching tonnage for mild steel, stainless, and aluminum — with safety margin and shear-angle tips. Punching Force Calculator Calculate the force required to punch a hole through sheet metal based on hole geometry, material thickness, and shear strength. Hole Shape Round Rectangular Diameter (mm) Length (mm) Width…

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GD&T Symbols Chart

Confused by GD&T symbols? Our complete chart explains all 14 geometric tolerances with examples, ASME vs ISO differences, and pro tips from the shop floor. GD&T Symbol Lookup Select a tolerance type: — Choose a Symbol — Straightness Flatness Circularity (Roundness) Cylindricity Profile of a Line Profile of a Surface Perpendicularity Parallelism Angularity Position (True…

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Rockwell Hardness Conversion

Convert Rockwell HRC and HRB to Brinell, Vickers, and tensile strength with our ASTM E140-based calculator. Accurate, fast, and engineer-approved. Rockwell Hardness Conversion Calculator Enter Value: HRC HRB HRA HV (Vickers) HB (Brinell) HRC: 60.00 HRB: >100 HRA: 73.00 HV (Vickers): 697.96 HB (Brinell): 640.00 Tensile Strength: 6845.46 MPa Rockwell Test Principle Test Specimen Diamond…

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Thread Pitch Calculator

Calculate thread pitch from TPI in real time. Supports Metric (M3–M10) and UNC (1/4-20 to 1/2-13) standards with 60° thread angle diagram and pitch reference table. Thread Pitch Calculator Threads per Inch (TPI): Pitch (mm) → TPI: Pitch (inch): 0.0500 in Pitch (mm): 1.2700 mm Pitch (micron): 1270.00 µm Reverse → TPI: 20.32 Thread Geometry…

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Cutting Speed Calculator

Calculate exact SFM, RPM and chipload in seconds. Avoid tool failure with material-specific cutting speeds for carbide and HSS — backed by real shop data. Cutting Speed Calculator Calculate Spindle Speed (RPM) and Cutting Speed (SFM / m/min) for milling, turning & drilling. Tool / Workpiece Diameter Imperial Metric inch Cutting Speed (SFM (ft/min)) Spindle…

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