Description
Heavy M30 joints ask two things of a torque tool: a high limit and a secure link to the body. The Snap-on QZOM46ADP open end head offers both. It carries 480 ft-lb, and its dual pins lock it into a Z-shank body. Its 46 mm jaw matches the ISO hex for M30 bolts and nuts.
Published figures for the QZOM46ADP
- Jaw: 46 mm open end.
- Shank: Z (0.990 in) with two retaining pins.
- Maximum recommended working torque: 480 ft-lb, about 651 N·m.
- O.D.: 93 mm.
- Head depth: 19 mm.
- Distance from fastener center to pin: 5.75 in.
All of these come from the CAT1500i metric open end table, and they agree with the source listing.
What the dual pins on the QZOM46ADP do
Dual pins give the head two locking points in the body instead of one. CAT1500i also marks its dual-range body table with a note for dual-pin heads only. Because the QZOM46ADP carries the DP suffix, it is the 46 mm Z option with a published rating. The plain QZOM46A, by contrast, does not appear in that table, so the Snap-on QZOM46ADP open end head is the safer pick for a dual-pin body.
Matching a Z body to the Snap-on QZOM46ADP open end head
CAT1500i lists the QD4IN800A as its Z dual-range body. It reads 150 to 800 N·m, or about 129 to 572 ft-lb, and it measures 41-1/2 in long. So your usable window with this head runs from 129 up to 480 ft-lb. In addition, Snap-on sizes these heads from pin to fastener, so the body needs no length correction. The body weighs about 11 lb, so plan for a two-hand pull.
M30 jobs that suit a dual-pin jaw
M30 bolts hold crane bases, mill stands, large gearbox mounts and heavy flange pairs. Often a pipe, a rib or a second nut blocks the top of the hex. Then the QZOM46ADP slides in from the side and still reaches a high value. However, compare the drawing spec with 480 ft-lb first. If the joint needs more, switch to a socket on a Z square drive head.
Steps up and down from 46 mm
At 41 mm, the M27 size, the QZOM41ADP keeps the same 480 ft-lb limit with an 83 mm head. At 50 mm, the QZOM50ADP also carries 480 ft-lb, yet it grows to 102 mm across. If your station runs X bodies instead, the QXOM46A covers 46 mm at 240 ft-lb. So the shank you already own often decides between them and the QZOM46ADP.
Getting a quote on the Snap-on QZOM46ADP open end head
SMK Vietnam lists this head, and Lost in HCM supplies it and writes the quote. Ask Lost in HCM for a QZOM46ADP quote, and note your Z body and the M30 torque value. Compare more Z heads under torque wrench heads and adaptors, or contact SMK Vietnam about the full Snap-on QZOM46ADP open end head kit.
Dual-pin 46 mm FAQ
Should I order the QZOM46ADP or the QZOM46A?
Order the ADP if you want the version CAT1500i lists with a 480 ft-lb rating. The plain A version needs a separate check with Lost in HCM.
What is the lowest setting with a QD4IN800A?
About 129 ft-lb, the bottom of that body’s range. For lighter M30 work, use a smaller body and shank.
How much room does the 93 mm QZOM46ADP need?
Allow for its 93 mm width and 19 mm depth around the nut, plus the swing of a 41-1/2 in body.
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