1/2" x 4" Forstner Bit Extension
Forstner bit extensions solve one of the major problems with forstner Bits -- their limited depth capacity. This extension fits WoodRiver forstner bits only that have 1/2" diameter shanks.Features:...
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• Designed for use with WoodRiver forstner bits only
• Extension adds 4” to length of forstner bit
• Socket accepts forstner bits with 1/2” diameter shanks
• Forstner bit held in extension socket with two set screws
• 1/2” diameter drive shank allows use of multiple extensions
I needed a very stable, secure grip onto bits used to drill out for a pepper mill. This extension worked perfectly.
I would buy this product again
Built right and bores / drills true
Allows me to drill / bore larger peppermill blanks with the 4" extension 1/2 inch shanked Forstner bits. Also makes the boring of coffee mug blanks (for go-cup insert) a snap.
"A great Tool"
I use this for boring 1" holes for pepper mills. Runs true! No problems.