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Tool Safety
1. Hole Cutting Tools are made to cut holes in
pipe. Follow instructions in Operator’s Manual
on proper use. Other uses may increase the risk
of injury.
2. To prevent entanglement do not reach across
the hole saw or wear loose cloth gloves.
Because this tool has high torque, clothing can
entangle with enough force to crush or break bone.
3. Keep fingers and hands away from the hole
saw blade. Reduces the risk of being cut.
4. Secure the hole cutting tool properly to the pipe.
Carefully follow set-up instructions. Position the
electric cord clear of the base and hole saw.
Improper set-up increases the risk of injury.
5. Do not use dull, bent, or damaged hole saws or
arbors. Less likely to bind and lose control.
6. When cutting into an existing system, the pipe
must be drained and de-pressurized. Reduces
the risk of electrical shock.
Model HC-450 Description,
Specifications and Accessories
Description
The RIDGID Model HC-450 Hole Cutting Tool is
designed to cut holes up to 4
3
/
4
″ into steel pipe. The
multiple hole sizes allow the use of Mechanical T’s
®
,
Hookers
®
, Vic-O-Lets™, and other fittings for branch-
ing unpressurized pipe lines.
The HC-450 has a
5
/
8
″ capacity drill chuck to accom-
modate all sizes of hole saws and hole saw arbors.
An integral motor and gear reduction optimizes perfor-
mance of large diameter hole saws. A unique two-
feed handle and switch actuation allows the operator
to use the Hole Cutting Tool from either the left or
right side. A rotating leveling vial in the base allows
repeated holes to line up. Only 12″ high, the compact
design, allows the HC-450 to be used in tight quarters
or above installed pipe close to ceilings.
NOTE! Mechanical T’s, Hookers, and Vic-O-Lets are reg-
istered trademarks of Victaulic Tool Company
WARNING
The HC-450 is not a Hot Tapping Tool. Care must
be taken to ensure the system is drained and de-
pressurized to prevent serious injury and/or prop-
erty damage!
Ridge Tool Company • Elyria, Ohio • U.S.A.
4
Specifications
Cutting Capacity............Up to 4
3
/
4
″ (120mm)
Pipe Mounting
Capacity ........................1
1
/
4
″ - 8″ (30mm-200mm)
Drill Chuck Capacity......
1
/
16
″ -
5
/
8
″ (2mm-16mm)
Drill Chuck Speed..........110 RPM
Motor Horsepower.........1.2 HP
Current Draw Rating......12 Amps @ 115V
Dimensions
Height - “A”....................11.5″ (29cm)
Length - “B” ...................17″ (43cm)
Width - “C”.....................17″ (43cm)
Weight ............................42 lbs. (19Kg)
Standard Equipment
• Hole Cutting Tool
• Chuck Key
•
5
/
8
″ Hole Saw Arbor w/Backing Plate and
1
/
4
″ Pilot
Drill
Accessories
• Hole saws and arbors
• Integral hole saws w/arbors
• Carrying Case
HC-450/HC-300 Hole Cutting Tools
Figure 1 – Dimension A & C
C
A