Certification conversion table, Use of extensions and adapters – CDI Torque DIAL TORQUE WRENCH SINGLE SCALE User Manual

Page 4

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CERTIFICATION

CONVERsION TAbLE

This torque wrench as calibrated at the factory, is
certified to meet the current ASME specification.
Additionally, all wrenches are calibrated on a torque
standard traceable to the National Institute of
Standards and Technology (N.I.S.T.).

To Convert

Multiply

From

To

By

in. oz.

in. lb.

0.06250

in. lb.

in. oz.

16

in. lb.

ft. lb.

0.08333

in. lb.

cmkg

1.15212

in. lb.

mkg

0.01152

in. lb.

Nm

0.11298

in. lb.

dNm

1.12984

ft. lb.

in. lb.

12

ft. lb.

mkg

0.13825

ft. lb.

Nm

1.35581

dNm

in. lb.

0.88507

dNm

Nm

0.1

Nm

dNm

10

Nm

cmkg

10.1971

Nm

mkg

0.10197

Nm

in. lb.

8.85074

Nm

ft. lb.

0.73756

cmkg

in. lb.

0.86796

cmkg

Nm

0.09806

mkg

in. lb.

86.7961

mkg

ft. lb.

7.23301

mkg

Nm

9.80665

UsE OF ExTENsIONs

ANd AdAPTERs

When using an extension or adapter (increasing the
effective length of the torque wrench) the output
torque value will change. To calculate the new torque
output of the wrench use the following formula:

TA = Torque exerted @ end of adapter
L = Distance between square drive and hand position
TW = Wrench scale reading
A = Length of adapter or extension

A number of variables can affect torque accuracy.
These include the length of an adapter or extension,
length of the wrench and variations in hand position
on the wrench will affect the accuracy of the above
calculation.

TW =

TA x L

L + A

NOTEs

TA

TW

A

L

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