| Project by Mark A. DeCou | posted 94 days ago | 315 views | 0 times favorited | 1 comment | ![]() |
This Maple Rounding Jack has been (SOLD).
Rounding Jack Serial Number #2008-09
Cutting Capacity: 1.25” – 8”
Cutting Path: Clockwise
Materials: Maple, Walnut, Brass, & Abalone Shell
If you are looking for a Rounding Jack, email me for more information at:
mark@decoustudio.com
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Project Story:
Rounding Jacks are used to cut the brim felt to size on fedora, western hats, cowboy hats, and several other styles. The brass adjustable curve on the front is placed against the crown, and then the cutter is moved in a rotation around the hat, keep the pressure against the crown. Setting the blade to the proper size is done by adjusting the cutter to the desired cut size, and then tightening the brass knurled knobs.








To make the cut. The blade guard knurled nut is loosened, the blade dropped down and the nut retightened. The slider nuts are loosened and the desired cut width is indicated by the pointer, and the slider nuts are tightened. The hat is placed on a wood crown block to give a firm resistance to the pressure being applied with the cutter, and the brim is placed between the bottom brass plate and the bottom of the cutter. Then, depending on whether the hatmaker is a Clockwise, or a Counterclockwise cutter, the Rounding Jack is slowly moved around the contour of the crown while pushing the cutter toward the center (head). Felt Hat Blanks are very expensive, so after the cutting is complete, a big sigh of relief is heard from the hatmaker.

The Adjustable Brass Crown Band on the front of the cutter is used when the brim is to be cut wider on the sides, than on the front and back. By adjusting the curve of the brass band, the cutter is pushed away farther on the wider curve of the crown sides.
Laser Engraving: I am happy to offer Laser Engraving now through Flint Hills Laser Engraving with any hatmaking tool. All we need is a clear picture file of your logo, or text, or we can develop a Logo for you at an additional charge.
Display Stand: The display stand is designed to sit on the hatmaker’s work bench and hold the cutter when it is not being used. The retractable blade can remain extended this way between uses. This particular stand shown in the photos is Black Walnut. This display stand is meant to make the whole project look like a functional-art sculpture, while it serves it’s functional purpose of the Rounding Jack safely.
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Artisan Hat Tools by Mark DeCou Studio
(Do you want to see More? Just follow these links):
- “Coming Soon”, Progress Photos posted here
- “Custom Laser Engraved Rounding Jack for Charlie @ Gladdhatter”: coming soon, please check back
- Rounding Jack, Maple Wood on a Walnut Bench-Top Display Stand
- Custom Rounding Jack w/ Scrimshaw for the Brainpan Hat Shop in Sumner, WA
- Custom Rounding Jack w/ Scrimshaw for Steve Delk's Adventurebilt Hat Co.
- Custom Rounding Jack w/ Scrimshaw for Marc Kitter's Adventurebilt Hat Co.
- Custom Rounding Jack w/ Scrimshaw for Pyrate Trading Co.
- Custom Rounding Jack w/ Scrimshaw for the Infamous Hatman Jack at Wichita Hat Works
- Custom Rounding Jack Laser Engraved for the Inaaya Hat Co.
- Custom Rounding Jack Laser Engraved for The Penman Hat Co.
- Prototype #2 Rounding Jack
- Prototype #1 Rounding Jack
- Foot Tolliker: Elk Antler & Birch Wood, on a Display Stand
- Foot Tolliker: Walnut Wood, on a Display Stand
- Foot Tollikers: Three in White Birch Wood
- Foot Tollikers: Walnut Wood Set of Four
- Foot Tollikers, Birch Wood Double Set, on Display Stand
- Wooden Hinge-Shackle Curling Tool for the Homburg Hat
- Wooden Curling Shackles, Various Sizes
- Wooden Groove Tolliker
- “Coming Soon”, please check back.
My Website with other woodworking, including furniture, walking canes, scrimshaw artwork, custom knives, and other misc. items
(Note:This project story, project design, photos, text, spelling, everything I can possibly list is copyrighted in 2008 by the Author, M.A.DeCou. If you want to use any part of this posting or the photos, for any Feeds, or a book, or another website, or for any reason whatsoever, even ones that I could not have dreamed about you doing before you did it, you must ask for permission first. Please)
-- Mark DeCou - Kansas Flint Hill's Artisan
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1 comment so far
thetimberkid
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1684 posts in 240 days
posted 94 days ago
Great job!
Thanks for the post
Callum
-- Look great, get your TTK merchandise now! http://www.printfection.com/thetimberkid/ Check out my site http://thetimberkid.blogspot.com/