Why Tap Drill Size Matters

A tap drill that is too small increases torque; one that is too large reduces thread engagement.

Why Tapped Threads Come Out Rough

Rough threads can be caused by a dull tap, unstable setup, poor chip evacuation or incorrect cutting conditions.

Why Taps Break in Metal

Tap breakage often comes from a wrong tap-drill size, misalignment, chip packing, excessive torque or poor lubrication.

Why Drill Bits Walk and How to Prevent It

Drill walking is usually a starting, alignment or point-geometry problem rather than a simple diameter problem.

Why Drill Bits Overheat in Steel

Overheating usually comes from speed, pressure, dull edges, poor chip removal or insufficient lubrication.

Why a Screw Extractor Snaps

Extractors are brittle and can snap when the pilot hole is too small, torque is excessive or the fastener is not centered.

Why a Threading Die Starts Crooked

A die can start crooked when the rod end is not chamfered, the die is not square or the setup is unstable.

Why a Pipe-Tapped Joint Leaks

Leaks may come from the wrong pipe standard, insufficient engagement, damaged threads or poor cleaning.

Why an End Mill Breaks

Breakage often follows excessive engagement, a weak setup, wrong tool geometry or chip evacuation problems.

Why an End Mill Chatters

End mill chatter is influenced by rigidity, overhang, flute count, radial engagement and cutting conditions.

Why a Carbide Burr Vibrates

Vibration often comes from excessive overhang, a bent shank, high side pressure or unstable workholding.

Why a Carbide Burr Loads Up in Aluminum

Aluminum can pack into a burr when the cut, speed, edge condition or lubrication is not suited to non-ferrous material.