Holes & threads

Tightening TorqueEstimates tightening torque from a specified preload and friction coefficients.

Drill SizesSelects a metric drill size from a user-defined diameter series.

Drill Depth Including TipCalculates the drill point length and total feed to reach the cylindrical depth.

Thread Engagement DepthEstimates the bearing engagement length from screw force and allowable thread shear stress.

TappingCalculates spindle speed, synchronous feed, and ideal cutting time for tapping.

Thread MillingCalculates spindle speed and corrected thread feed for thread milling.

Thread MeasurementCalculates the three-wire measurement for a symmetrical external thread.

Thread DepthDetermines the minimum tap travel and the required pilot hole depth.

CountersinkCalculates the axial depth of a countersink from the two diameters.

Core Hole DiameterCalculates the recommended core hole diameter for cut and formed metric threads.

Position Tolerance of Hole PatternCalculates the diametrical positional error from measured coordinate deviations.

Metric Thread DataCalculates basic dimensions and thread stress area of a 60° metric thread.

ReamingCalculates pilot diameter, spindle speed, and feed from a specified reaming allowance.

Deep Hole DrillingCalculates length-to-diameter ratio and stroke rate from a specified feed stroke.

CounterboreDerives counterbore dimensions from the actual screw head and desired clearance.