Why use a reduced shank on large drill bits?
It allows large-diameter bits to fit in standard 1/2" drill chucks without needing a larger drill.
What’s the typical size range for Silver & Deming bits?
They usually start at 9/16" diameter and go up to 1-1/2" diameter, all with a 1/2" shank.
Why are they called Silver & Deming drills?
The name comes from the Silver & Deming Manufacturing Company, which popularized the design in the late 19th century.
What is a Silver & Deming drill bit?
A Silver & Deming drill bit is a large-diameter drill bit, typically with a 1/2" reduced shank, designed to fit standard drill chucks while drilling larger holes.