Description
A torque tester is only useful if every wrench in the shop can couple to it. The Snap-on 65-78-1 socket adaptor helps with that job. It has a female 1/2 in square on one end and a female 3/4 in square on the other, so it joins two male drives of different sizes.
Where Snap-on lists the 65-78-1
Snap-on places this part in the accessories table for its torque comparators and testers. Lost in HCM also files it under electronic torque testers and calibrators. In other words, it belongs to the test bench rather than the toolbox.
How the Snap-on 65-78-1 socket adaptor fits a test setup
Both ends are female, so the adaptor bridges two male squares. For example, it can couple a wrench with a 1/2 in male drive to a fixture or transducer with a 3/4 in male square. Before you order, though, check which ends your tester and wrenches actually present.
Adaptors related to the 65-78-1
- 65-26-2: female 1/2 in square x 3/8 in square.
- 65-78-2: female 3/4 in square x 3/4 in square.
- 75-25-1: female 1 in square x 3/4 in square.
- 2000-226-3: a 3/4 in male x 1/2 in female square drive reducer.
So a lab can cover several wrench sizes with a small set of adaptors, rather than buying a tester for each drive.
Choosing the right 65-78-1 setup
First, list the drive sizes of the wrenches you check most. Next, note the drive on your tester or transducer. Then pick the adaptor that bridges the two with the fewest parts in the chain. Fewer joints also mean less play between the wrench and the sensor.
Care on the bench
Inspect both squares of the Snap-on 65-78-1 socket adaptor for wear and burrs at each tester check. Replace the adaptor if a drive rocks in it, because play can affect repeat readings. In addition, Snap-on advises periodic checks of the tester itself.
Requesting a quote for the Snap-on 65-78-1 socket adaptor
Lost in HCM supplies this adaptor and prepares the quote, and SMK Vietnam lists it for them. Mention your tester model with the request. Then request 65-78-1 pricing from Lost in HCM. You can also browse torque testers and calibration systems, see more heads and adaptors, or contact SMK Vietnam.
65-78-1 questions
Does the 65-78-1 have a male end?
No. Both ends are female squares, one 1/2 in and one 3/4 in.
Which part joins two 3/4 in male drives?
Snap-on lists the 65-78-2, a female 3/4 in x 3/4 in adaptor, for that.
Does SMK Vietnam calibrate testers?
No. SMK Vietnam only lists the part. Use your usual calibration provider for tester checks.
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