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CT-6 Hand Drill

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CT-6 Hand Drill

This item is no longer in production and is not available for purchase. It is listed here for reference purposes only.

Item Number: 1101-120

Availability: Discontinued

Quick Overview

The CT-6 Hand Drill was our commemorative tool of 1998.
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Product Description

Most past hand drills suffer from manufacturing inadequacies, almost always related to the bevel gear train. here's why...

Bevel gears provide non-linear rotary motion transmissions. In a hand drill, the gear train transforms the handle rotation to the chuck shaft-a ninety-degree axis shift. Properly engineered, bevel gears have a very low threshold for manufacturing errors. There is only one spot between the drive gear and the pinion(s) where the mesh allows maximum power transmission with minimum "grind". The most common way to "design around" these tolerances in the mass produced hand drills of yesterday was to "float" the pinion(s). This means the pinion gear was purposely "sloppy". Upon rotation, they would "float" and find "the spot" where the train appeared to work. Unfortunately, the driven pinion is connected directly to the chuck shaft, so by default, this shaft had to "float" as well. Consequently, the entire chuck/shaft/pinion assembly was always loose int he body of the tool. This is just an awful way to build a drilling tool, and it is why many of these drills performed very poorly at low rpm's-which is exactly where they were to perform best!

Many manufacturers disguised this loose assembly with springs or other methods, but this mechanical flaw is only cured with precisely located and properly cut gears.

The tooth shaping process of bevel gears is laboriously expensive, but creates a gear train that does not need to be "sloopy loose" to work properly. Because of this expense, most mass produced bevel gears are die cast, sintered or made from similar molding processes. The gear mesh in the CT-6 15th Anniversary Hand Drill is as good as it gets.

With few exceptions, gears in a gear train should be constructed to wear equitably. The four-inch gear of the CT-6 Hand Drill is precisely milled from a silicon bronze investment casting. The pinions are CNC turned and milled from aluminum bronze. These two dissimilar metals have wear characteristics that are very close to the teeth ratio in the train, inviting multiple generations of use--meaning neither you nor I will be alive when it needs factory maintenance.

The hand-turned wooden handles (rosewood or Juara wood) are capped with brass ferrules. The body is powder-coated investment cast steel. The keyless three-jawed chuck has a 1/4" capacity. All bearings are permanently lubricated bronze. The overall length is just over fourteen inches. There is not one aspect of this tool where we cut corners, and we will be hard pressed to match this tool in aesthetics or function in future commemorative tools.

The CT-6 Hand Drill is designed to drill circular holes. As a design theme, there is not one curve on any of the three handles which is not a true arc segment. The body of the tool repeats this circular theme with three interlocking rings. All negative spaces in the large gear and the central hub of the body mirror the handle designs. The CT-6 Hand Drill is a very harmonious proposition and creates a commanding presence in the hand, inspiring all who come in contact with its graceful beauty.


Drilling holes and countersinking are frequent endeavors in the wood shop. And to be sure, there are multiple tools that perform these tasks. We assure you, nobody has seen a drill like the CT-6 Hand Drill and nobody has used a tool that works as smooth. This stunningly handsome work of art is a viable addition to your shop or tool collection.

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