Free tools

Quick calculators for machine shops and CNC buyers.

CNC machine selector

Enter part shape, size, stock type, machining needs and volume to get a recommended CNC machine type with reasons.

Estimate import duty, VAT and total cost of importing a CNC lathe or milling machine into Vietnam.

Calculate spindle speed, feed rate, metal removal rate, cutting power, cycle time and theoretical surface finish for CNC turning and milling.

Calculate the weight of round, hex and square bar, flat plate and tube, and estimate material cost.

Estimate yearly hours and cost saved by a new CNC machine, and how long it takes to pay back.

Calculate tap drill size, pitch diameter, minor diameters, thread depth and infeed per pass for metric threads.

Enter a nominal size and hole and shaft tolerance classes to get deviations, limit sizes and clearance or interference.