Bridge City DJ-3 User manual

Bridge City DJ-3
Universal Drilling Jig

English Version

Congratulations on your new DJ-3 Drilling
Jig!
READ FIRST
This manual is designed to provide you with a
better understanding of your new drilling jig,
how to operate and maintain it.
Please read the manual carefully. The manual
also includes our warranty and important safety
information. As with all tools, please ensure to
take all necessary safety precautions to
prevent any accidents! Always remember,
safety first!
SAFETY FIRST
When working with the DJ-3 Drilling Jig always
remember to:
• Ensure that everything is properly secured
before drilling
• Wear eye protection when drilling
• Work in a clean and safe environment
• Maintain your tools!

Overview
You will soon learn that the DJ-3 Universal
Drilling Jig 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
the hassles of complex fixtures and intricate
setups.
However, the DJ-3 Universal Drilling Jig is
meant to be used in conjunction with a
powered hand drill, a palm brace, or
eggbeater-style hand drill. Drill and drill bits are
NOT INCLUDED with the DJ-3 Drilling Jig, so
please ensure that you have all the proper
tools necessary for the task.
In order to drill holes accurately and safely,
having your workpiece in a vice or clamped to
a sturdy bench is strongly recommended. The
DJ-3 can then be clamped to your material with
an appropriately sized clamp.

Fig. 1 Nomenclature
Note:
Screw A: Used for locking the bushing.
Screw B: Used for locking the bushing.
Screw C:Used for locking the flip stop brackets.
Adjustable Jaw
Locking Knobs
Arm Locking Knobs
Adjustable Jaw
Right Outrigger
Right Arm
Body
Screw B
Left Arm
Left Outrigger
Screw A
V-Jaws
Flip Stops
Screw C
Beam
Flip Stops Bracket
Screw C

Specifications
Description
Metric
Imperial
Overall Length when Closed
358mm
14-3/32"
Overall Height
65mm
2-9/16"
Jaw Length
124mm
4-7/8"
Jaw Height
36.7mm
1-7/16"
Bushing Spacing (Center to
Center)
96mm
3-25/32"
Nose to Bushing Center
21mm
53/64"
Nose to Nose Length
138mm
5-7/16"
Bushing Minor Diameter
19mm
3/4"
Bushing Major Diameter
25mm
63/64"
Bushing Minimum Diameter
1mm
1/16"
Bushing Maximum Diameter
13mm
1/2"
Bushing Length
20mm
25/32"

Bushing Installation on DJ-3
Supplied Bushing Size
Size
Quantity
Imperial
1/16"
1
1/8"
1
3/16"
1
1/4"
2
5/16"
1
3/8"
2
7/16"
1
1/2"
2
Metric
1mm
1
2mm
1
3mm
1
4mm
2
5mm
1
6mm
2
7mm
1
8mm
2
9mm
1
10mm
2
11mm
1
12mm
1
13mm
1

As seen in the chart above, there are an
assortment of sized bushings provided with the
DJ-3 Drilling Jig. Please choose the
appropriate bushing and corresponding drill bit
to ensure the accurate results.
Install the bushings as following steps (Fig. 2):
1) To install the bushing, start by extracting
the hex wrench that is magnetically stored
within the left outrigger body.
2) Using the hex wrench, loosen the two
screws (Screw A) on the both ends of the
DJ-3 body. Then remove the two screws
(Screw B) at the top of the DJ-3 body. Set
these screws safely aside for now.
3) Insert the desired bushing into the Drilling
Jig Body. Make sure to align the notches in
the bushing with the body.
4) Reinstall both Screw B and Screw A, and
tighten properly.
Note: In the below illustration (Fig. 2), only one
Screw A and Screw B are shown for simplicity
purposes. There is one more Screw A and B on
the mirrored side of the DJ-3 body.

Fig. 2
Positioning the DJ-3
When setting up the DJ-3, it can be utilized
in two (2) drilling configurations: Centered
and Off-Centered drilling. Please refer to the
appropriate sections for setting up the DJ-3
accordingly.
1. Centering the DJ-3 (Fig. 3)
Start off by clamping the stock to a bench or in
a vise. Loosen the Arm Locking Knobs (D) and
pull the left and right outriggers jaws
(champagne colour) apart (the distance of the
jaws must be larger than the width of the stock).
Screw A
Screw B
Bushing
D
Left Outrigger

As shown in Fig. 3, position the drilling jig on
top of the stock and close the outriggers jaws
so that the jaws make contact with both faces
of the stock. Once positioned into place, tighten
the Arm Locking Knob (D) to set the position.
The drilling jig should be precisely centered
with the stock and ready to be drilled.
Fig. 3
2. Off Centering (Fig. 4)
Similar to centered drilling, start off by clamping
the stock to a bench or in a vise. Loosen the
Arm Locking Knobs (D) and pull the left and
right outriggers jaws (champagne colour) apart
(the distance of the jaws must be larger than
the width of the stock).
To set the offset, loosen the Adjustable Jaw
Lock Knobs (E). From there, you can slide the
Adjustable Jaw to the desired position. There
D
Left Outrigger
Right Outrigger

are laser etched graduations on the bottom of
the Adjustable Jaw to make setting the offset
amount easier. When you have achieved the
desired offset position, tighten the Adjustable
Jaw Lock Knob (E) to hold it in that position.
Then you can close the outrigger's jaws, and
hold them against both faces of your stock.
From there, lock the Arm Locking Knob (D) to
lock the position of the arms. You can now
accurately drill holes up to 60mm from the
center of your workpiece.
Fig. 4
D
E
Right Outrigger
Left Outrigger

Drilling with the DJ-3
A woodworking vise or small bar clamp works
well with the DJ-3 Drilling Jig, as shown in
Fig.5. In order to get accurate, consistent holes,
follow these steps:
1) Before drilling, you should already have
installed the appropriate bushings, and
chosen the corresponding drill bit. If not,
refer to the previous section and install the
bushings first before proceeding.
2) As mentioned in the previous section,
position the DJ-3 over your stock and close
the outriggers jaws. You will want the jaws to
be against both faces of your stock, as
shown above in Fig. 2 & 3.
3) Once the DJ-3 is correctly positioned, lock
the Arm Locking Knobs (D) to lock the arms.
4) Drill your hole with any style hand drill. It is
strongly recommended that you put your
workpiece in a vise to ensure drilling stability.

Fig. 5
Tips for Using DJ-3 Drilling Jig:
• [IMPORTANT] The drill bushings are
designed to lock into the body, preventing the
bushings from binding to the drill bit if the chip
load becomes too large. When drilling deep
holes, it is highly recommended to use “peck
drilling”. This means that you should drill a
little, clear the chips, drill a little more, clear the
chips, etc...
• As seen in Fig. 6 (below), the bushings are
spaced 96mm apart, center-to-center. This
means it’s very easy to utilize the European
32mm system.

• The maximum width of stock that DJ-3
Universal Drilling Jig can accommodate is 12-
13/32” (315mm).
• For drilling into stock narrower than the DJ-3
body, use the end of the DJ-3 as a reference
for your hole. The center of the bushings are
each 21mm from each end of the DJ-3.
• When drilling with the DJ-3, always secure
the Arm Locking Knobs (D). This is to ensure
proper hold and accuracy!
Fig. 6
D

Flip Stops (Fig.7)
The flip stops are utilized when repeatability is
needed. To set up the flip stop, loosen the two
set screws (F) and insert the Flip Stop Beam
into the slot behind the orange V-Jaw. Position
the Beam where you need it and tighten the set
screws (F) with a 2mm hex wrench. Do not
overtighten the screws (F). Doing so will distort
the V-Jaw, creating inaccurate results while
damaging the tool as well.
Note:
When butting the stock up against the Flip
Stops, one must be careful to maintain
straightness of the Beam. Butting the stock too
firmly into the Flip Stops could flex the Beam,
creating inaccurate positioning of your hole.
Fig.7
Flip Stop Beam
F

V-Jaws
The V-Jaws can securely hold many different
shapes. Below are some examples. For clarity
purposes, only the Jaws and stock material are
shown.

Optional Accessories
We offer a DJ-3 Universal Drilling Jig Jaw Kit to
be used with the DJ-3. With this optional kit,
the DJ-3 provides unparalleled drilling
capabilities.
To learn more about these accessories, please
visit our website at https://bridgecitytools.com/
Care and Maintenance
The DJ-3 should be cleaned after every use. To
clean, wipe the tool with a damp cloth.
Periodically, apply a small amount of lubricant
to the pulleys to ensure smooth operation. It is
recommended to use a light lubricant, such as
WD-40 or light machine oil for best results.

中文版本

恭喜您购买了 DJ-3 万能钻模!
使用前须知
此操作手册旨在让您更好地了解 DJ-3 万能
钻模，以及如何进行操作和维护。
请仔细阅读操作手册。该手册还包含我们的
保修和重要的安全信息。与所有工具一样，请确
保采取所有必要的安全措施，以防止事故的发
生！
安全注意事项
使用 DJ-3 钻模时，请遵守以下安全事项：
•钻孔前确保所有部件都已固定到位。
•钻孔时穿戴眼部保护装备。
•在整洁和安全的环境中进行操作。
•定期对工具进行维护。
概述
DJ-3 万能钻模可以称作是“一个在盒子里
的台钻”。它为用户多样的钻孔需求提供了最合
理的解决方案，并且无需复杂的夹具和设置。
DJ-3 万能钻模需配合电钻或者手摇钻使
用。DJ-3 的标配不包含钻孔机和钻头，所以在
进行钻孔前，请确保您已备好所需的适当工具。
要获得最准确和安全的钻孔，我们建议您将
工件用虎钳夹住，或者将工件固定在工作台上，
然后用合适尺寸的夹具将 DJ-3 夹到你的工件
上。