
Specifications
Display Units Inches & Millimeters
Accuracy ±0.001" (0.03mm)
Display 0.0005" (0.01mm)
Power Supply SR44 Button Battery (Included)
Important Safety Information
1. CONTAINS BUTTON BATTERY.
Keep out of your child’s reach.
Discard button batteries carefully.
Do not allow children to play with
devices that contain button batteries.
This product is not a toy.
2. Wear ANSI-approved
safety goggles during use.
3. Keep work area clean and well lit.
Components and Controls
in/mm
Button
OFF
OFF
4. Do not operate when tired or
when under the influence of
alcohol, drugs or medication.
5. Use as intended only.
6. Inspect before every use; do not use
if parts are loose or damaged.
7. Maintain product labels and nameplates.
These carry important safety information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
Lock Screw
in/mm
in/mm
mm
mm
ON
ON
OFF ON
ZERO
ZERO
ZERO
Button
Battery Cover
Button
Thumb
Knob
Prongs
Page 2 For technical questions, please call 1-800-444-3353. Item 47257

Instructions
1. Push the OFF ON button to turn caliper on.
2. To toggle measurement between inches
and millimeters, press in/mm button.
3. With jaws closed, press ZERO
to set readout to 0.
4. To measure outside of object,
set the bottom prongs outside
object being measured. Slide the jaws
together until they gently contact the item.
in/mm
in/mm
mm
mm
ON
ON
ZERO
OFF
OFF
Outside Measurement Inside Measurement
ZERO
5. To measure inside of object, set the
top prongs inside object being measured.
Spread prongs apart until they
touch surface of object.
6. When finished, press OFF ON
to turn off Caliper.
7. To replace battery, open battery
compartment to right of display, install
new SR44 battery positive (flat) side up,
and slide Battery Cover back into place.
Note: Replacement parts are not available.
in/mm
in/mm
mm
mm
ON
ON
ZERO
OFF
OFF
ZERO
OFF
OFF
ON
ON
in/mm
in/mm
Depth Measurement Step Measurement
Page 3For technical questions, please call 1-800-444-3353.Item 47257

Limited 90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality
and durability standards, and warrants to the original purchaser that this product is free from
defects in materials and workmanship for the period of 90 days from the date of purchase.
This warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence
or accidents, repairs or alterations outside our facilities, criminal activity, improper installation,
normal wear and tear, or to lack of maintenance. We shall in no event be liable for death,
injuries to persons or property, or for incidental, contingent, special or consequential damages
arising from the use of our product. Some states do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitation of exclusion may not apply to you.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS
OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us
with transportation charges prepaid. Proof of purchase date and an explanation
of the complaint must accompany the merchandise. If our inspection verifies the
defect, we will either repair or replace the product at our election or we may elect
to refund the purchase price if we cannot readily and quickly provide you with a
replacement. We will return repaired products at our expense, but if we determine
there is no defect, or that the defect resulted from causes not within the scope
of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also
have other rights which vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353