DJ-3 Universal Drilling Jig

-One Tool for 9 Drilling Applications

The History

At all times, John Economaki - the founder of Bridge City Tool Works has been dedicated to creating the Fewest Number of Tools for makers to create high-level work in a confined space.

John brought the first- generation Drilling Jig DJ-1 in 2009, which addresses the vast majority of drilling needs encountered by woodworkers and can realistically replace a stationary drill press. In 2012, he designed the second generation DJ-2 Drill Jig.

9 years later, John made his third design of the Drill Jig! And now, we are excited to introduce the 3rd- generation Drill Jig DJ-3 Universal Drilling Jig! With 9 kinds of drilling capabilities, incredible drilling accuracy and stunning appearance, DJ-3 will be an amazing new tool for your workshop!

There is no more accurate way of drilling holes than through a drill bushing. The DJ-3 Universal Drilling Jig allows for two drill bushings to be inserted with a maximum drill size of 1/2” (13 mm). Compared to the previous generations of Bridge City Drill Jigs, DJ-3 features a new and improved stop system, and an adjustable jaw for off-center drillings.

Using a similar dual cable adjustment system as the Bridge City CS-3 CenterScribe, the DJ-3 Universal Drilling Jig will self-center on stock up to 12-13/32” (315 mm) in width. In addition, the DJ-3 will allow for off-center drilling up to 60 mm from center. Also, the DJ-3 Jaws are configured to hold cylindrical stock and spheres. With different configurations, DJ-3 is able to handle 9 different drill applications as below:

Center Drilling on Flat Face
Off Center Drilling on Flat Face
Drilling on Round an Tube Stock
Axial Drilling on Round Stock
Bias Drilling on Square Stock
Axial Drilling on Square Stock
Center Drilling on Sphere
Dowel Hole Drilling on 45 Degree Miter* (with the optional Jaw Kit DJ-3-J)
Angled Drilling on Flat Face* (with the optional Jaw Kit DJ-3-J)

As you will soon learn, the DJ-3 can easily be thought of as a drill press in a box. It offers a legitimate answer to the drilling needs of many customers without sufficient space.

Amazing Drilling Accuracy

The bushings are made of tool steel, hardened to a Rockwell of 60- 62 HRC. After thousands of hours of research and experiments, we found that this specific hardness gave the maximum life to both the bushings and the drill bits, so that the drilling accuracy is guaranteed.

In addition, the bushings have a tolerance of 10 microns, which ensures every hole drilled using this jig will be incredibly accurate.

Improved Stop System

For repeatability, the DJ-3 is equipped with an improved Stop System. The flip stop are designed to reach the stock regardless of which "V" Groove is used. Drilling multiple, accurate holes has never been this easy!

Thoughtful Design for Storing the Hex Wrench

The 2mm hex wrench is conveniently stored in the body of the DJ-3 and is retained by a hidden rare earth magnet.

Premium Materials

The DJ-3 Universal Drilling Jig is mostly made of 6061 aircraft grade aluminum alloy for excellent rust resistance.

In addition, the DJ-3 Drilling Jig is anodized for a vibrant and decorative finish with strong corrosion and wear resistance.

Standard Bushing Kit

The DJ-3 Universal Drilling Jig comes with the Standard Bushing Kit including 28 bushings of the following sizes:

Eleven Imperial Bushings:
1/16" x1,1/8" x1,3/16" x1, 1/4" x2, 5/16" x1,3/8" x2, 7/16" x1,1/2" x2.

Seventeen Metric Bushings:
1mm x1, 2mm x1, 3mm x1, 4mm x2, 5mm x1, 6mm x2, 7mm x1, 8mm x2, 9mm x1, 10mm x2, 11mm x1, 12mm x1, 13mm x1.

Center Drilling on Flat Face

sing a similar dual cable adjustment system as the CS-3 CenterScribe, the DJ-3 Universal Drilling Jig can automatically align the bushings with the centerline of the workpiece.

The maximum width of stock that can be drilled in this case is up to 12- 13/32" (31 5mm).

Off Center Drilling on Flat Face

The DJ-3 will also allow for off center drilling up to 60mm from center by using the laser-etched graduation on the back of the adjustable jaw.

Drilling on Round and Tube Stock

Milled into the removable jaws of the DJ-3 are two "V" grooves for drilling perpendicular holes on round or tube stock.

The maximum diameter of stock that can be drilled in this case is up to 2 -3/8" (60mm).

Axial Drilling on Round Stock

Round stock of ANY length can be drilled axially with the DJ-3 Universal Drilling Jig. This is the use that a drill press cannot compete with.

The maximum diameter of stock that can be drilled in this case is up to 12- 13/32" (31 5mm).

Bias Drilling on Square Stock

Because of the bushing we are using, the larger drills bits will not drift off the center line. The maximum side length of stock that can be drilled in this case is up to 1-19/32" (40.5mm).

Axial Drilling on Square Stock

Square stock of ANY length can be drilled axially with the DJ-3 Universal Drilling Jig. This is the use that a drill press cannot compete with.

The maximum side length of stock that can be drilled in this case is up to 8-55/64" (225mm).

Center Drilling on Spheres

Spheres from 5/16" (8mm) to 2-3/8" (60mm) in diameter can also be easily drilled with the DJ-3 Universal Drilling Jig.

Dowel Holes Drilling on 45 Degree Miters*
(with the optional Jaw Kit DJ-3-J)

Want miter joints that can be strengthened with dowels?
The DJ-3 Universal Drilling Jig, when fitted with the 45° miter jaws, will always drill holes perpendicular to the mitered edge directly on the centerline.

Stock of ANY length can be drilled with the 45° miter jaws, and the maximum width of stock that can be drilled in this case is up to 7-9/32" (185mm).

*This drilling application must be completed in conjunction with the optional Jaw Kit DJ-3-J.

Angled Drilling on Flat Face*
(with the optional Jaw Kit DJ-3-J)

Drilling holes at an angle is extremely easy with the long accessory jaws.

In conjunction with Long Accessory Jaws, the large diameter bits with nominal shank diameters can be used for drilling large holes.

Using this setup, holes can be drilled up to 45 degrees. The maximum thickness of stock is up to 5-5/16" (135mm).