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.

Why a Reamer Chatters

Reamer chatter usually comes from instability, too much overhang, poor alignment or incorrect cutting conditions.

Why a Reamer Cuts Oversize

An oversize reamed hole can come from excessive allowance, runout, poor alignment, speed or a worn reamer.

Why a Countersink Is Too Large

Oversizing can result from excessive pressure, poor alignment, tool runout or a countersink selected for the wrong fastener.

Why a Countersink Chatters

Chatter comes from overhang, unstable workholding, excessive feed, a dull tool or an angle mismatch.

Why a Mag Drill Arbor Wears Prematurely

Arbor wear is often caused by runout, poor fit, side loading, chips in the interface or a worn pilot system.

Why a Magnetic Drill Loses Holding Power

Magnetic holding power depends on clean contact, adequate steel thickness, a flat base and a sound magnet system.