The Great Hand Plane Revival

The Great Hand Plane Revival


Bench-side instruction on tuning, sharpening and using your grandfather's old plane! [Read More]

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Joinery Handplanes with Bill Anderson

Joinery Handplanes
with Bill Anderson


Learn how to identify, use, and repair wooden and metal joinery planes in this five hour instructional video that's...[Read More]
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A Cabinetmaker's Notebook

A CabMaker's Notebook


A well known work by Krenov, this is the first in a series of four books written about the art and craft of cabinetmaking....[Read More]
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Buying & Restoring Hand Tools with Ron Herman

Buying & Restoring Hand Tools with Ron Herman


Learn how to purchase old hand tools at a good price for restoration purposes. Rom Herman will demonstrate how to restore several types of hand...[Read More]
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Nicholson Files


Working with Hands - James E. Price

  Adams' Countersink  

My post today in the parade of countersinks is one such tool patented by D. J. Adams on January 23, 1877 and assigned Patent Number  186,513.

Adams' countersink is adjustable by loosening a screw and rotating a threaded collar to advance the cutter and give it a ranker cut. Examples of this countersink are moderately scarce so if you see one in the wild, latch onto it because they are a pleasure to use.

This photo shows two versions of Adams' Countersink. The one on the right is probably the earliest since when it was made it was marked Patent Pending. The one on the left is imprinted with the patent date.

This photo shows the adjustable cutting heads of Adams' Patent.

This is a view of the back of Adams' Patent Countersinks.

James E. Price
November, 2016

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