Description
Small IZO/ISO torque wrenches take plug-in tools rather than fixed heads. The Snap-on IZ15IR9X12 insert ring is one of them. It puts a 15 mm ring on a 9 x 12 mm fitting, so a compact wrench can tighten 15 mm nuts and bolt heads.
How to read the IZ15IR9X12 code
Snap-on’s catalog describes this part as a “15 mm Insert Ring 9 x 12”. So the first number gives the fastener size. Then the last pair gives the fitting in millimeters. That fitting matters most, because it decides which wrench bodies accept the insert. In European tool terms, a ring means a closed end that surrounds the fastener.
Wrenches for the Snap-on IZ15IR9X12 insert ring
On SMK Vietnam, three ControlTech models use a 9 x 12 mm receiver: the CTECHAN30A, CTECHAN135A and CTECHANM30. Any of them will take this ring. By contrast, the 14 x 18 mm CTECHBN340A needs the larger IZ15IR14X18. Snap-on also builds a calibration factor for head length into ControlTech wrenches. Therefore, check the wrench settings each time you swap inserts, and follow the manual.
Where the IZ15IR9X12 sits in the 9 x 12 ring range
- Smaller rings: 10, 11, 12, 13 and 14 mm.
- This part: 15 mm.
- Larger rings: 17 and 19 mm.
Snap-on also lists a 15 mm OE insert, the IZ15OE9X12, on the same fitting. If you are unsure which style suits your joint, ask Lost in HCM before you order. For bigger nuts, the 14 x 18 ring range runs from 13 to 36 mm. In addition, 9 x 12 ratchet inserts come in 1/4, 3/8 and 1/2 in drive, so one wrench can also run sockets.
Limits and care
Snap-on’s insert table does not print a working torque for its insert rings. So ask Lost in HCM to confirm the limit for the Snap-on IZ15IR9X12 insert ring before you set a high value. Wipe the fitting before each swap, so it sits square in the receiver. Also never use the wrench to break a fastener loose. Finally, keep the wrench on a regular recalibration plan, as Snap-on advises.
Order the Snap-on IZ15IR9X12 insert ring
Lost in HCM supplies this ring and writes every quote, while SMK Vietnam lists it as a partner product. Name your wrench model in the request, so Lost in HCM can confirm the 9 x 12 fit. Then ask Lost in HCM for an IZ15IR9X12 quote. You can also see more torque wrench heads and adaptors, browse torque wrenches, or contact SMK Vietnam.
IZ15IR9X12 questions
Does it fit a 14 x 18 mm wrench?
No. For a 14 x 18 receiver, Snap-on sells the IZ15IR14X18 instead.
Will it fit a J or Y shank body?
No. Round-shank QD and QC bodies take Q-series heads, not IZO inserts.
What fastener size does it suit?
Snap-on lists it for 15 mm fasteners.
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