Page 46 - Tohnichi_CIP

Tohnichi Reference Guide 2019

The Relationship between Interchangeable Heads and Torque Wrenches
Tohnichi?s interchangeable head wrenches have speci?c diameter round ?
ends that ?t into corresponding head base openings. Head and wrench Nominal diameter
model names include the diameter sizes so heads can be matched to ? CL100N×15D
wrenches that will accept those heads. ?
For example: SH15D×17 will ?t on CL100N×15D Nominal diameter
A variety of different head types (SH, RH, QH, RQH, FH, DH, AH and SH-N) ? 15D=?15
can be used on one wrench or different types of wrenches such as CL (for
tightening) and CEM3 (for inspection) can use the same head that has the SH15D×17
corresponding diameter size.
QH Ratchet Head RoHS DH Square Drive Head RoHS

$ $
C $ ? C $ ?
? 1
1
?
h I h I
C b QH15D b C
I a I DH15D
a
C C ? H
As the QH type ratchet heads need only small swing for tightening, they suit for The DH square drive heads are the standard interchangeable head. They are useful
? H
operations in narrow spaces. when tightening a large number of matching screws with a common torque wrench. It
is recommended to keep one set. They are used with sockets.
Dimensions
Head Size Model Sq. Drive Outside Width h b Dimensions
a [mm] c [mm] [mm] [mm] Head Size Model Sq. Drive Outside Width h b
8D QH8D 6.35 23 17.5 7.5 a [mm] c [mm] [mm] [mm]
QH10D-1/4 18.5 10D DH10D 22.5
10D 26 9.53 18 13
QH10D 22 12D DH12D 23
12D QH12D 9.53 32 25.6 11 15D DH15D 22
QH15D-3/8 30.5 19D DH19D 12.7 24 29.5 16.5
15D 37.5
QH15D 33.5 14 22D DH22D 34 43.3
19D QH19D 12.7 40 38.4 15.4 27D DH27D 19.05 42 44.5 23.5
QH22D-1/2 41.5 15.5 32D DH32D 25.4 50 58.5 30.25
22D 51
QH22D 46.5 20.5 DH32D is a through hole type.
27D QH27D 19.05 70 49.7 21.5 Note
32D QH32D 25.4 74 55.7 26.5
Note 1. For the model having 25.4mm square drive, use a through-hole socket.
QH15D-3/8 Tmax 100N·m HH Hex Head
QH22D-1/2 Tmax 280N·m RoHS
2. Ratchet protective cover is available. Refer to page 45. ?d2
?G
m N
Accessories RQH Female Ratchet Head RoHS ? HH10D×6
W
X
D
C
1
HH hex-head is for
hexagon socket
C
$
8
W
U t
head bolts. A hex
? Hex key (Sold separately) key can be inserted.
1
The HH hex-head is for hex. socket head cap screws.
H ) RQH15D×17 Model Dimensions
h I Head Size (Body Size × Width) Outside Width t m ?d2
? ?D ' C [mm] [mm] [mm] b [mm]
8D HH8D 12 14.5 - -
As the RQH type ratchet heads need only small swing for tightening, they suit for HH10D×5 11
operations in narrow and low ceiling spaces. 10D HH10D×6 12 8
Dimensions HH10D×8 15
Model
Head Size D Outside Width H h HH12D×5 11 19 7
(Body Size × Width)
[mm] C [mm] [mm] [mm] 12D HH12D×6 14 10
RQH12D×12 HH12D×8 15
12D 20.5 32 24.1
RQH12D×14 HH12D×10 17
RQH15D×14 HH15D×8 14
15D 24.5 37.5 29
RQH15D×17 15D HH15D×10 17 21
RQH19D×17 10 HH15D×12 20
19D RQH19D×19 31 45 28 HH15D×14 21.5
RQH19D×22 HH19D×10 17 13 8.5
RQH22D×22 HH19D×12 21.5
22D 35.2 51 35
RQH22D×24 19D HH19D×14 23 23
HH19D×17 27
HH19D×19 29
HH22D×12 19.5
Ratchet Protective Cover for QH/RQH HH22D×14 27
22D HH22D×17 30 17 26 10
Fit on your Tohnichi Ratchet Head to protect your work HH22D×19 32
HH22D×22 35
Part # Applicable Interchangeable Head Note 1. To be used with hex. key inserted.
870 QH8D 2. HH8D is not used with hex. key but interchangeable bit.
871 QH10D 3. Insertion of HH10D×5 and HH10D×6 are hexagon. Others are
872 QH12D/RQH12D double hexagon.
872 with QH12D 874 QH15D/RQH15D
875 QH19D
876 RQH19D HH8D
878 QH22D/RQH22D
Bits are sold separately.
870 Refer to page 10.
43