For my final
installment on my eBay bit brace lot I will tell
you about my rare Holt brace.
The Holt brace was
designed by toolmaker Gardiner Holt as competition to the
highly successful John S. Fray Spofford brace. Mr. Holt
patented his design for a split chuck in 1880, and examples
are found marked Hartford, CT or Springfield, MA.
Both types of braces are of a
split chuck design, though the Holt has a few peculiarities
of itís own.
The most obvious difference in
the two designs is that the Spofford chuck is a more
sweeping, fluid shape while the Holt chuck is more bulbous.
But to see the real difference we must look closer at the