SKU: 57330805281

How To Make A Fly Cutter Holder, A Fly Cutter, And A Depth-of-Cut Attachment, To Make Small Gears by Robert Porter

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Description

How To Make A Fly Cutter Holder, A Fly Cutter, And A Depth-of-Cut Attachment, To Make Small Gears by Robert PorterThis 8 1 2" x 11", 12 page booklet will show you how to make a fly cutter holder; how to make and use a constant profile fly cutter to produce gear teeth with perfect profile symmetry. You are also shown how to make a simple depth of cut attachment for your milling attachment to make it easier to precisely control the depth of cut of the fly cutter. How to make sure the fly cutter is perfectly square to the holder is also illustrated. Useful

This 8 1/2" x 11", 12 page booklet will show you how to make a fly cutter holder; how to make and use a constant profile fly cutter to produce gear teeth with perfect profile symmetry. You are also shown how to make a simple depth-of-cut attachment for your milling attachment to make it easier to precisely control the depth of cut of the fly cutter. How to make sure the fly cutter is perfectly square to the holder is also illustrated.

Useful information about setting your lathe compound to produce the 40 degree included angle on the holder, as well as cutting the .275"/40 thread, to fit the milling attachment for your WW style watchmakers' lathe. The making of a 96 tooth gear with the holder and fly cutter is illustrated as well. The holder can be scaled up to fit other milling attachments. Eighteen pictures, with supporting text and a line drawing will show you what you need to know to make small gears.

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SKU: 57330805281

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Christopher Shipp
Grantham, US
★★★★★ 5
Great Product!
Color: Rechargeable Set with Base
Works as expected. Truly happy with the price and durability so far.
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Reviewed in the United States on March 17, 2026
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Sheila Harricharan
Boise, US
★★★★★ 4
Good pepper grinder
Color: Rechargeable Set with Base
Good grinding capabilities. When I use for salt ,it drips every where . Only suitable for pepper
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Reviewed in the United States on September 11, 2025
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SRS
Battle Creek, US
★★★★★ 5
quick set up
Color: Rechargeable Set with Base
So far, 2 weeks, it was easy to fill, charged quickly, looks lovely, easy adjustment on the course to fine dial, great value, so far. and mush less clutter-y than the four different items I had to use to get both fine and course grands. Light weight and it appears to be built to last.
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Reviewed in the United States on October 25, 2025
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Catherine Bedegi
Lake Worth, US
★★★★★ 5
Game changer!
Color: Stainless Steel, Color: Stainless Steel
This electric salt and pepper grinder set is an absolute game-changer. With a generous capacity, you’ll refill far less often, and the rechargeable base keeps everything powered—no more hunting for batteries. The adjustable coarseness delivers perfect results every time, whether you’re finishing a dish with a fine seasoning or adding a bold, coarse grind. The built-in LED light gives you precise control, and the grinders themselves feel solid, high-quality, and impressively sleek. They look stunning on any counter or dinner table. If you want to elevate your kitchen experience—or give a gift that truly impresses—this set is a clear winner.
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Ruth Patrick
Louisville, US
★★★★★ 5
Excellent rechargeable salt & pepper grinders
Color: Stainless Steel
Love these rechargeable, refillable, salt & pepper grinders. Grinders work great & easy to set the grind. Also, easy to use, easy to clean and recharge. Much better than the battery power grinders.
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Reviewed in the United States on April 15, 2026

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