Description
A 10 mm hex usually means an M6 bolt, and M6 joints need a light, careful hand. The Snap-on QJBOERM10A box end head brings that size to a J-shank torque wrench. Its 12-point ring ratchets, so you can tighten a run of small bolts without lifting the head.
The smallest metric box end in the table
Snap-on’s 12-point metric ratcheting heads start at 10 mm with the QJBOERM10A. It has a 21.5 mm O.D. and an 8 mm head depth. The next size is the 12 mm QJBOERM12A, at 23.5 mm and 8 mm, because Snap-on lists no 11 mm head. In addition, the Y-shank metric versions only come in 16, 18 and 24 mm. So for 10 mm work, this J head is the one choice.
Match the body to M6 values
QC series bodies hold ±4% clockwise from 20 to 100% of full scale. Therefore, a small value belongs on a small body. For example, a 10 N·m spec sits at 20% of a 50 N·m body, right at the edge. So pair the Snap-on QJBOERM10A box end head with a lower-range J body. That keeps the value higher on its scale.
| J body | Range |
|---|---|
| QC1P100 preset | 15-100 in-lb (1.7-11.3 N·m) |
| QC1I200 adjustable | 40-200 in-lb |
| QC1P300 preset | 60-300 in-lb (6.8-33.9 N·m) |
| CTECH1J240A ControlTech | 12-240 in-lb (1.4-27.2 N·m) |
| QD2IN50A dual-range | 10-50 N·m |
Snap-on QJBOERM10A box end head on the line
- Cover and panel bolts on electrical cabinets and machine guards.
- Sensor brackets and cable clamps on automation cells.
- Small pump and fan housings.
A 12-point ring can seat on the hex every 30 degrees, so placing it in a tight spot is easier. Meanwhile, the ratchet lets the handle swing back without lifting. As a result, the QJBOERM10A suits bolts with little room to move the handle.
Torque rating
Snap-on’s catalog does not print a maximum working torque for the metric ratcheting box end heads. So we do not state one for the QJBOERM10A. Typical M6 values are small, yet ask Lost in HCM to confirm the figure if your spec runs high.
Care for a small ratchet
Keep grit and swarf out of the QJBOERM10A ratchet, because small teeth clog fast. Also seat the ring fully before each pull. Never use the head to break a bolt loose, and recalibrate the body on a regular plan.
Requesting the Snap-on QJBOERM10A box end head
SMK Vietnam lists the head, and Lost in HCM supplies it and sets the price. Tell them your J body and the torque value you need. Then request a QJBOERM10A quote from Lost in HCM. Low-range bodies sit under torque wrenches, and other heads under torque wrench heads and adaptors. Questions can go to SMK Vietnam’s contact page.
QJBOERM10A FAQ
Is there an 11 mm version of this head?
No. Snap-on’s metric table jumps from 10 mm to the 12 mm QJBOERM12A.
What bolt does a 10 mm ring fit?
ISO 4017 and ISO 4032 give M6 bolts and nuts a 10 mm hex. Check your hardware, since some standards differ.
Can I get the 10 mm head on a Y shank?
No. Y-shank metric box end heads start at 16 mm.
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