RATCHET HEAD
MODEL: QH8D
BRAND: TOHNICHI
The QH type ratchet head requires a small swing for tightening, making it ideal for operations in narrow spaces.
Tohnichi's interchangeable head wrenches have specific diameter round ends that fit into corresponding head base openings. Head and wrench model names include the diameter sizes so heads can be matched to wrenches that will accept those heads.
Model |
Tohnichi Head Size |
Sq.Drive (mm) |
Sq.Drive (in) |
Outside Width (mm) |
h (mm) |
b (mm) |
QH8D |
8D |
6.35 |
1/4 |
23 |
17.5 |
7.5 |
QH200I-2A* |
10D |
26 |
22 |
11 |
QH10D-1/4 |
QH10D |
9.53 |
3/8 |
QH12D |
12D |
32 |
25.6 |
QH750I-3A* |
15D |
37.5 |
33.5 |
14 |
QH15D-3/8** |
QH15D |
12.7 |
1/2 |
QH19D |
19D |
40 |
38.4 |
15.4 |
QH22D-1/2 |
22D |
|
|
21.5 |
QH22D |
19.05 |
3/4 |
51 |
46.5 |
QH27D |
27D |
70 |
49.7 |
QH32D |
32D |
25.4 |
1 |
74 |
55.7 |
26.5 |
*QH750I-3A available until stock depleted. Replaced with new model QH15D-3/8 featuring new sq.dr. ratchet design.
*QH200I-2A available until stock depleted. Replaced with new model QH10D-1/4 featuring new sq.dr. ratchet design.
**QH15D-3/8 Max Torque Tolerance 100NM
PROTECTIVE COVERS
This protective cover prevents head from coming in direct contact with the product you are assembling. Easy to install and remove when required. Provides protection on the outside edge while still allowing for use of the lever ratchet and square drive.
Part # |
Applicable Interchangeable Heads and Wrench Models |
#870 |
QH8D |
QL/PQL to 15N, incl -MH & QSP1.5N4 to 12N4 |
#871 |
QH10D |
QL/PQL/QSP25N, incl -MH |
#872 |
QH12D |
QL/PQL/QSP50N incl. -MH |
#873 |
- |
QL/PQL/QSP100N4 incl. -MH |
#874 |
QH15D |
QL/PQL/QSP140N, incl -MH |
#875 |
QH19D |
QL/PQL/QSP200N4 incl. -MH |
#876 |
RQH19D |
|
#877 |
-- |
QL/PQL/QSP280N4, incl. -MH |
#878 |
QH22D |
QL/PQL/QSP420N |