Description
M20 hardware shows up on frames, bases and heavy brackets across most plants. Its ISO hex measures 30 mm, and the Snap-on IZ30IR14X18 insert ring fits that size. The ring plugs into a 14 x 18 mm IZO receiver, so a single wrench body can switch to 30 mm work in seconds.
Choosing 30 mm in the 14 x 18 ring range
Snap-on’s 14 x 18 rings run 13, 14, 15, 17, 19, 22, 24, 27, 30, 32 and 36 mm. On either side of the IZ30IR14X18 sit the IZ27IR14X18 and the IZ32IR14X18. Note that the 9 x 12 rings stop at 19 mm. Therefore, any 30 mm ring job needs a 14 x 18 wrench.
Snap-on also lists a 30 mm OE insert, the IZ30OE14X18. Pick the ring for open access from above, and the OE style when a tube or rod blocks the ring.
Torque range with the Snap-on IZ30IR14X18 insert ring
The CTECHBN340A on SMK Vietnam takes this ring and reads 17 to 340 N·m. Snap-on prints no separate rating for insert rings. As a result, the wrench range is your working window. Many M20 joints sit inside it, yet high-grade bolts can call for more. So check your drawing value against 340 N·m first.
A 30 mm ring is longer than a small insert. Because ControlTech wrenches correct for head length, set the factor for the IZ30IR14X18 each time you fit it.
Jobs for a 30 mm ring
- M20 base bolts on motors, pumps and gearboxes.
- Frame and column joints on racking and machine beds.
- Large clamp and coupling bolts during equipment install.
For these joints, the Snap-on IZ30IR14X18 insert ring keeps a closed grip around the nut, so the corners share the load.
Care for the IZ30IR14X18
First, seat the ring fully on the nut before you pull, because a partial grip loads only the corners. Then keep the fitting clean and check it for burrs. Also never use the wrench to break a nut loose. Finally, plan regular recalibration for the wrench, as Snap-on advises.
Buying the Snap-on IZ30IR14X18 insert ring
Our partner Lost in HCM supplies this ring and prepares each quote, while SMK Vietnam lists it. Name your wrench and torque spec in the request. Then ask Lost in HCM for an IZ30IR14X18 quote. You can also explore torque wrench heads and adaptors, view torque wrenches, or contact SMK Vietnam.
IZ30IR14X18 FAQ
Can a 9 x 12 wrench take a 30 mm ring?
No. Snap-on’s 9 x 12 rings end at 19 mm, so 30 mm needs the 14 x 18 fitting.
Which sizes sit next to the IZ30IR14X18?
The 27 mm IZ27IR14X18 and the 32 mm IZ32IR14X18.
What limits the torque with this ring?
The wrench range. On the CTECHBN340A, that range is 17 to 340 N·m.
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