Description
Electronics and appliance lines run clutch screwdrivers all day, and each one needs checking against a known joint. The Snap-on QC1JRS50 joint rate simulator lets a torque tester do that. It sits on the tester’s 1/4 in square drive and holds up to 50 in-lb. So you can test light screwdrivers on a soft, medium or hard joint at the bench.
QC1JRS50 data from Snap-on
| Square drive | 1/4 in |
|---|---|
| Capacity | 50 in-lb (about 5.6 N·m) |
| Adaptor bit | 1/4 in hex x 3/16 in hex |
| Load screw | 1/4 in x 28 x 1 |
Why the Snap-on QC1JRS50 joint rate simulator differs from its siblings
Snap-on makes three joint adaptors. The QC2JRS400 and QC2JRS1000 both use a 3/8 in drive and a bit with a 3/8 in square internal end. The QC1JRS50, by contrast, drops to a 1/4 in drive and an all-hex bit. As a result, it suits small screwdrivers, while the larger two serve nutrunners. If your tools stay under 50 in-lb, this model gives finer control.
Setting up the QC1JRS50
First, place the adaptor on top of the tester’s square drive. Next, tighten the setscrew so it cannot turn. Then fit the adaptor bit into the power tool and mate it with the top of the adaptor. Finally, stack the Belleville washers in the pattern for the joint you want to copy. A hard stack builds torque fast, while a soft stack lets it rise over more turns.
Testers that match the 1/4 in drive
Snap-on’s QC1ETT50 tester reads 5-50 in-lb on a 1/4 in drive, and the QC1ETT100 reads 10-100 in-lb. Snap-on notes that these testers handle nonimpacting power tools when you add a joint rate simulator. So the QC1JRS50 and a QC1ETT50 make a compact pair for a screwdriver audit. Also, keep each test below the 50 in-lb capacity.
Care of the Snap-on QC1JRS50 joint rate simulator
Check the bit ends for wear, because a rounded hex can slip and spoil the reading. In addition, keep the washers clean and in order. Store the set in a labeled box with the tester.
Ordering the QC1JRS50
SMK Vietnam lists this adaptor, and Lost in HCM supplies it with the quote. Tell them your tester model and the tool torque range. Then request a QC1JRS50 quote from Lost in HCM. Matching testers appear under torque testers and calibration systems, or you can contact SMK Vietnam.
QC1JRS50 FAQ
Can the QC1JRS50 test an impact driver?
No. Snap-on lists its joint rate simulators for nonimpacting power tools only.
How much is the 50 in-lb capacity in N·m?
About 5.6 N·m. Snap-on prints the capacity in in-lb, so the metric figure is a conversion.
Which testers share its drive?
Snap-on’s QC1ETT50 and QC1ETT100 electronic testers both have a 1/4 in square drive.
Reviews
There are no reviews yet.