Rockwood 31831 User manual

3/8" INLINE DRILL
Non-Reversible
INSTRUCTIONS
Item #31831

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The ROCKWOOD 3/8” INLINE DRILL is a heavy-duty industrial level tool with hardened planetary
reduction gears ruggedly designed for many years of reliable service. It features a unique, slim and
compact inline design to allow access to areas where other drills can’t go. A high-torque, 5-vane, ball
bearing air motor provides smooth operation and long life. Speed is easily controlled with an infinitely
progressive throttled trigger control.
CONTENTS
(1) 3/8” [10mm] Chuck,
Inline Drill
(1) Chuck Key
(1) 1/4” MNPT, Male
Quick Disconnect
Inlet Fitting
SPECIFICATIONS
RPM: 2,500 free speed
Variable speed, 5 vane, ball bearing air motor
Air Consumption: 7 CFM [198 L/min]
Inlet Thread Size: 1/4” FNPT
Maximum Chuck Capacity: 3/8” [10mm]

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READ INSTRUCTIONS
• Thoroughly read and understand these product instructions before using
this tool. Failure to follow all warnings can result in tool damage or
serious physical injury.
• Keep these product instructions for future reference.
EYE INJURY HAZARD!
• Rapidly rotating surfaces can eject metal particles, dirt and debris at
high velocity. Always wear ANSI approved eye protection when operating
this tool.
HEARING DAMAGE HAZARD!
• This Rockwood Pneumatic Tool emits high sound levels while operating.
Use ANSI approved ear protection when using.
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION used with the safety alert symbol, indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
NOTICE is used to address practices not related to personal injury.
SAFETY INFORMATION
The following explanations are displayed in this manual, on the labeling, and on all other information
provided with this product:

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BURSTING HAZARD!
• Do not exceed 90 psi (6.2 bar) of tool inlet pressure. Permanent tool
damage and/or explosion could occur and cause personal injury.
INJURY HAZARD!
• This tool has high-speed, rotating components which can quickly cause
severe injury. Keep fingers and hands away from moving parts when
operating. Wear thick, well-fitting work gloves and keep loose clothing,
sleeves, cords, jewelry and hair away from moving parts.
• This tool could eject sparks at high speed which can ignite flammable
materials or injure others nearby. Do not operate near flammable materials
and keep all persons and pets away from the work area.
• Hold drill securely while in use as the drill body can suddenly kick back,
twist or rotate causing severe hand or wrist injury. Wear thick, well-fitting
work gloves. Do not force drill or exert excessive side forces on tool. Drill
bits can suddenly break with excessive side force.
• Always make sure the workpiece is securely clamped or anchored to
avoid sudden movements which could result in injury.
• Always disconnect Drill from air supply when changing drill bits or
accessories to prevent accidental tool starting and potential serious injury.
• Frequently inspect Chuck and overall tool condition. If damage is discov-
ered, discontinue tool use immediately. ONLY USE drill bits or accessories
rated for 2,500 RPM or greater use otherwise serious injury can result in
the event of failure.
VIBRATION INJURY HAZARD!
• This Drill will vibrate during use! Repeated exposure to vibration may cause
physical injury.

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INJURY HAZARD!
Remove Chuck Key before starting Drill.
SET-UP
• Using a good quality Teflon sealing tape (not included), thread the 1/4" MNPT, Male quick
disconnect inlet fitting into the air inlet.
CONNECTION
• Be sure that the air supply to the tool is clean and dry. Moisture in the supply line will quickly
damage the motor and valves.
• A minimum 3/8” I.D. air line should be used for optimal performance.
OPERATION
• Open the Chuck Jaws by rotating the shell in a Counter-Clockwise direction (as viewed
from the open end).
• Insert drill bit or accessory shank into Chuck Jaws.
• Close the Chuck Jaws by rotating the shell in a Clockwise direction (as viewed from the
open end).
• Insert Chuck Key into one of three bores of the Chuck with the gear teeth engaged and
turn Clockwise to tighten Chuck Jaws.
• Connect air supply, depress Paddle to begin rotating action. Speed is regulated by pressure
applied to the Paddle.
INJURY HAZARD!
Hold drill securely while in use as the drill body can suddenly kick back, twist
or rotate causing severe hand or wrist injury. Wear thick, well-fitting work
gloves. Do not force drill or exert excessive side forces on tool. Drill bits can
suddenly break with excessive side force.

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MAINTENANCE
• Add several drops of air tool oil before each use by dropping directly into the air inlet.
• If tool is to be unused for an extended period, add 10 drops of air tool oil directly to the air inlet,
rotate the tool motor by hand several times to distribute the oil throughout the motor, then store
the tool, handle up.

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Tool Doesn’t
Respond to
Trigger
Depression
Insufficient
Volume of Air
(CFM) to
Operate Tool
Verify sufficient air supply to tool.
(7 CFM @ 90 PSI minimum requirement).
Moisture or Other
contamination
in Air Supply
Check for moisture in air line and tool air inlet.
Tool Perfor-
mance is Slow
or Sluggish
Insufficient
Volume of Air
(CFM) to
Operate Tool
Verify sufficient air supply to tool.
(7 CFM @ 90 PSI minimum requirement).
Moisture or Other
contamination
in Air Supply
Check for moisture in air line and tool air inlet.
Air Motor
is Lacking
Lubrication
Stop use immediately and add air tool oil directly
to air inlet
Tool is Exces-
sively Noisy/
Emits High
Pitched Sound
Air Motor
is Lacking
Lubrication
Stop use immediately and add air tool oil directly
to air inlet.
Tool Vibrates
Excessively
During Use
Loose
Chuck Jaws Tighten Chuck Jaws.
Out of balance
condition from
damaged Chuck
Stop use immediately, check for damaged Chuck.
Out of balance
condition from
damaged drill bit
or accessory
Stop use immediately, replace damaged drill bit
or accessory.
TROUBLESHOOTING

© Copyright 2017 Easthill Group, Inc. 6/17 Instruction item #31831Q Rev 1
If you have any questions about the use of this product, please contact
The Eastwood Technical Assistance Service Department: 800.343.9353 >> email: [e-mail]
PDF version of this manual is available online >> eastwood.com/31831manual
The Eastwood Company 263 Shoemaker Road, Pottstown, PA 19464, USA
US and Canada: 800.343.9353 Outside US: 610.718.8335
Fax: [phone] eastwood.com
ADDITIONAL ITEMS
#13902 Eastwood Cylindrical Wire Brush, 5 Pack
#15645 9 Piece, 2” Sanding & Prepping Kit
#70491 Eastwood Industrial Air Hose, 3/8” x 25’
#70492 Eastwood Industrial Air Hose, 3/8” x 50’