Description
The Snap-on QYRX32A flare nut head turns 1 in tube nuts through a slotted 12-point ring on a Y shank (0.560 in). Snap-on gives it a maximum recommended torque of 158 ft-lb, about 214 N·m. CAT1500i prints that figure, and the UK Torque Brochure lists 1,900 in-lb, which comes to the same value. So this head has a firm, agreed ceiling.
The Snap-on QYRX32A flare nut head versus Y body ranges
| Y body | Top of range | Can it pass 158 ft-lb? |
|---|---|---|
| CTECH2Y100A | 100 ft-lb | No |
| QC3P150 | 150 ft-lb | No |
| QD3IN200B | 200 N·m (about 148 ft-lb) | No |
| QC3P200 | 200 ft-lb | Yes |
The head limit sits above most Y bodies, so on those wrenches the body runs out of scale first. Only the QC3P200 can go past 158 ft-lb. In that case, set the preset at or below the QYRX32A rating, and record the setting.
Where 1 in tube nuts sit
On many 37-degree flare systems, the swivel nut for 5/8 in tube measures 1 in across the flats. You will find such nuts on cooler, lube and hydraulic lines of US-built compressors and gensets. Because the tube passes through the nut, a socket cannot reach it. The slotted Snap-on QYRX32A flare nut head slips over instead, and its twelve points seat every 30 degrees. Check the hex first, though, since makers differ.
12-point, 6-point or ratchet at 1 in
Snap-on offers three 1 in heads on the Y shank. The 6-point QYRXS32A carries the same 158 ft-lb rating in both sources and suits soft or worn nuts. Meanwhile, the ratcheting RTWH64YSL runs a nut down quickly but has no printed rating. The Snap-on QYRX32A flare nut head sits between them, because it holds a known limit and still finds a seat in tight swing room.
Keeping the QYRX32A slot true
A slotted ring can open slightly after heavy use. So record the slot width on a new head, and recheck it at every service. Also clean oil off the shank before it enters the body, so the head locks fully. Finally, plan periodic recalibration for the body, which Snap-on calls necessary for accuracy.
Snap-on QYRX32A flare nut head from Lost in HCM
SMK Vietnam lists the QYRX32A for Lost in HCM, which supplies it and prepares the quote. State your Y body and the joint value in the request. Then open the QYRX32A page at Lost in HCM to ask for a price. Neighbors such as the 15/16 in ring sit under torque wrench heads and adaptors, and you can contact SMK Vietnam.
QYRX32A rating and fit
Do Snap-on’s sources agree on the QYRX32A rating?
Yes. CAT1500i gives 158 ft-lb, and the UK brochure gives 1,900 in-lb, the same value.
Which head sits one size below the QYRX32A?
The QYRX30A at 15/16 in, rated 146 ft-lb in CAT1500i.
Will a 25 mm nut fit the QYRX32A?
One inch equals 25.4 mm, so a 25 mm nut sits loose. Use a metric head on metric nuts.
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