Pi Tape I.D. METRIC for .5mm Resolution Tape Operating instructions

Brand
Pi Tape
Model
I.D. METRIC for .5mm Resolution Tape
Type
Operating instructions

Pi Tape I.D. METRIC for .5mm Resolution Tape is a precision measuring tool designed to accurately measure the inside diameter of objects. Its unique Vernier scale divides each graduation on the gage member into 50 parts, allowing for measurements with a resolution of 0.5mm. The tape is easy to use, requiring only that you place it inside the object to be measured and align the vernier scale with the gage member. The value at the point where the vernier scale lines up closest to the marked division line on the gage member represents the measurement in millimeters.

Pi Tape I.D. METRIC for .5mm Resolution Tape is a precision measuring tool designed to accurately measure the inside diameter of objects. Its unique Vernier scale divides each graduation on the gage member into 50 parts, allowing for measurements with a resolution of 0.5mm. The tape is easy to use, requiring only that you place it inside the object to be measured and align the vernier scale with the gage member. The value at the point where the vernier scale lines up closest to the marked division line on the gage member represents the measurement in millimeters.

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Vernier Scale divides each graduation on Gage Member
into 50 parts or .5mm
EXAMPLE
VERNIER
TO READ INSIDE DIAMETER METRIC .5mm RESOLUTION TAPE
GAGE MEMBER
Make certain the tape and object to be measured are both clean.
Each line on the gage member represents 25mm of diameter, while each line on the vernier represents .5mm.
Place the tape inside the object to be measured. The vernier scale should be just below the gage member. Make
certain the tape is aligned on the inside diameter flat and snug to the part, straight and parallel so the gage
member is flat against the vernier scale.
Locate the “zero” on the vernier scale and note the highest value achieved on the gage member above it (the
highest value to the left of the zero). In this example, the value is 925mm.
Next, observe the vernier scale’s value at the point where it lines up closest to the marked division line on the
gage member. In this example, the value is 4.5 (4.5mm).
Finally, to obtain the diameter of the object, simply add the two values together:
925mm + 4.5mm = 929.5mm
Inside diameter tapes are manufactured at 68ºF under no tension. All inside diameter tapes are marked I.D. and
are calibrated for direct inside diameter readings.
As a suggestion for checking very large diameters – pieces of masking tape can be used to hold the tape in the
proper parallel position.
Tape resolution 0.5mm
Care
Tape is delicate, handle with care. Keep tape clean and dry.
After each use, wipe clean and apply a light rust preventive oil*. Store in tape container and in a low moisture environment. *
White Easy to Read tapes Stainless or 1095 Spring Steel - Do not oil or use solvents to clean this product.
White Easy to Read 1095 Spring Steel must be stored in a low moisture environment to prevent rust.
No periodic adjustments are needed.
Make sure the tape has not been stepped on or kinked, which may destroy the tape tolerance.
January 2023 Rev C
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Pi Tape I.D. METRIC for .5mm Resolution Tape Operating instructions

Brand
Pi Tape
Model
I.D. METRIC for .5mm Resolution Tape
Type
Operating instructions

Pi Tape I.D. METRIC for .5mm Resolution Tape is a precision measuring tool designed to accurately measure the inside diameter of objects. Its unique Vernier scale divides each graduation on the gage member into 50 parts, allowing for measurements with a resolution of 0.5mm. The tape is easy to use, requiring only that you place it inside the object to be measured and align the vernier scale with the gage member. The value at the point where the vernier scale lines up closest to the marked division line on the gage member represents the measurement in millimeters.

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