Question 1

Does this have an nist certificate?

Accepted Answer

If you're expecting a NIST primary standard calibration certificate, expect to spend more than $50 for a torque wrench - upward of 10 times that. Those that would need that kind of certification would be dealing with things like the space probes and manned spacecraft, nuclear subs (Subsafe program) nuclear weapons and military stealth aircraft -- not your automobile valve cover or clutch spring screws.

Question 2

I dont get an audible click, it just breaks free (tactile) at the right torque..should i get a click ?

Accepted Answer

Yes, you should get an audible click. The description in the listing says "Wrench emits a click that can be heard and felt when the preset value is reached. I also went to Tekton's website and looked up this torque wrench (TRQ21101) and they say 
 "When the wrench's preset torque value is reached, a simple and reliable mechanical operation inside the handle produces a click you can hear and feel, alerting you to stop applying force".

Question 3

where do you set 71in lbs?

Accepted Answer

Hold the lock collar down and turn lower handle until the inch pound marker reaches 70 in lbs and is aligned with “0” on the tenths row(top row of sleave collar).  Next, rotate the tenths row to “1” centered with the vertical of the main scale.

Question 4

Does this have a warranty? Mine is way out of calibration and i cant safely use it on my carbon fiber bike anymore.

Accepted Answer

Daniel R., Look in your records if purchase from (Amazon) on item TEKTON 1/4 IN. Drive-Direction Click Torque Wrench ( 10-150 in.-lb.) TRQ21101. Work with ( Amazon ) and good luck in getting a new tool or your refund......

Brand	TEKTON
Model Number	TRQ21101
Product Dimensions	22.35 x 2.29 x 2.29 cm; 362.87 g
Material	Metal
Torque	16.9 Newton Meters
Quantity	1
Are Batteries Included	No
Item Weight	363 g

TEKTON 1/4インチドライブ2方向クリックトルクレンチ（10-150 in-lb./1.1-16.9 Nm） TRQ21101

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