Ask the Expert: Why do bits break?

Design, conditions, and manufacturing are three factors to take into consideration.
Aug. 30, 2019
Photo courtesy of ProMAXX
Why Do Bits Break 5d69508348965

Question: Why do bits break? 

Answer: 

Design

A small chip pocket means low flute volume, leading to breakage in the middle of the bit. 

Conditions

Torque and drag lead to heat and breakage. Apply drill lube. 

Manufacturing

Machined > Stamped

Better bits have a micro point that prevents wandering. 

Information provided ProMAXX

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