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Use accurate torque controls to improve quality! Case examples can be found in torque handbook 10

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HOME > Products > Accessories > Interchangeable Head

Interchangeable Head

Torque wrench model Example: CL50N
WIDTH mm / inch
Select head
 

SH Open Wrench Head

SH open heads can be used for piping tasks that do not permit the use of sockets or ring heads.

SH Open Wrench Head Dimension details
◆ How to order

Specify “Tohnichi”, then “Model”.

Example: Tohnichi SH12D x 14

Ask for inventory status and price.

Model/Type
Model (Body Size x Width)		 Allowable Torque
[N･m]		 Outside width
[mm]		 Thickness (t)
[mm]		 Length (ℓ)
[mm]		 Weight
[kg]		 Compliant models JAN code Inventory Prices
SH8D X 5.5 1.5 13 3 35 0.03

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135119805 Please contact us.
SH8D X 6 2.5 15 3.5 35 0.03

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135119812 Please contact us.
SH8D X 7 3.5 17 4 35 0.03

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135119829 Please contact us.
SH8D X 8 7 20 4.5 35 0.03

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135119836 Please contact us.
SH8D X 10 14 25 5.5 35 0.04

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135119843 Please contact us.
SH8D X 11 15 27 5.5 35 0.04

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135119850 Please contact us.
SH8D X 12 15 29 5.5 35 0.04

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135119867 Please contact us.
SH8D X 13 15 29 5.5 35 0.04

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135119874 Please contact us.
SH8D X 14 15 29 6.5 35 0.04

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135119881 Please contact us.
SH8D X 16 15 31 6.5 35 0.04

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135119898 Please contact us.
SH8D X 17 15 32 6.5 35 0.04

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135119904 Please contact us.
SH8D X 19 15 35 6.5 35 0.05

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135119911 Please contact us.
SH8D X 21 15 36 6.5 35 0.05

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135126568 Please contact us.
SH8D X 22 15 37 6.5 35 0.05

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135126575 Please contact us.
SH8D X 24 15 39 6.5 35 0.05

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH Open Wrench Head Details 		4562135119928 Please contact us.

SH model open heads (inch sizes)

SH Open Heads (Inch Sizes) are for inch-size widths across flats.

SH model open heads (inch sizes) Dimension details
◆ How to order

Specify “Tohnichi”, then “Model”.

Example: Tohnichi SH8D×1/4

Ask for inventory status and price.

Model/Type
Model (Body Size x Width)		 Allowable Torque
[N･m]		 Outside width
[mm]		 Thickness (t)
[mm]		 Length (ℓ)
[mm]		 Weight
[kg]		 Compliant models JAN code Inventory Prices
SH8D X 1/4 2.5 15 3.5 35 0.01

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH model open heads (inch sizes) Details 		4571141279335 Please contact us.
SH8D X 5/16 7 20 4.5 35 0.02

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH model open heads (inch sizes) Details 		4571141279342 Please contact us.
SH8D X 3/8 14 25 5.5 35 0.02

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH model open heads (inch sizes) Details 		4571141279359 Please contact us.
SH8D X 7/16 15 27 5.5 35 0.03

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH model open heads (inch sizes) Details 		4571141279366 Please contact us.
SH8D X 1/2 15 29 5.5 35 0.03

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH model open heads (inch sizes) Details 		4571141279373 Please contact us.
SH8D X 9/16 15 29 6.5 35 0.04

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

SH model open heads (inch sizes) Details 		4571141279380 Please contact us.

RH Ring Head

RH ring heads do not separate from bolt heads easily, making tasks safer and more accurate.

RH Ring Head Dimension details
◆ How to order

Specify “Tohnichi”, then “Model”.

Example: Tohnichi RH12D x 10

Note: RH8D X 5.5～7 are hexagonal.

Ask for inventory status and price.

Model/Type
Model (Body Size x Width)		 Allowable Torque
[N･m]		 Outside width
[mm]		 Thickness (t)
[mm]		 Length (ℓ)
[mm]		 Weight
[kg]		 Compliant models JAN code Inventory Prices
RH8D X 5.5 1.5 10.5 5 35 0.03

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

RH Ring Head Details 		4562135120672 Please contact us.
RH8D X 6 2.4 11 5 35 0.03

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

RH Ring Head Details 		4562135120689 Please contact us.
RH8D X 7 3.6 12 6 35 0.03

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

RH Ring Head Details 		4562135120696 Please contact us.
RH8D X 8 7.2 13.5 6 35 0.03

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

RH Ring Head Details 		4562135120702 Please contact us.
RH8D X 10 12.2 15.5 7 35 0.04

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

RH Ring Head Details 		4562135120719 Please contact us.
RH8D X 11 15 17 7 35 0.04

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

RH Ring Head Details 		4562135120726 Please contact us.
RH8D X 12 15 18 7 35 0.04

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

RH Ring Head Details 		4562135120733 Please contact us.
RH8D X 13 15 19 7 35 0.04

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

RH Ring Head Details 		4562135120740 Please contact us.

RH model ring heads (inch sizes)

RH Ring Heads (Inch Sizes) are for inch-size widths across flats.

RH model ring heads (inch sizes) Dimension details
◆ How to order

Specify “Tohnichi”, then “Model”.

Example: Tohnichi RH8D×1/4

Ask for inventory status and price.

Model/Type
Model (Body Size x Width)		 Allowable Torque
[N･m]		 Outside width
[mm]		 Thickness (t)
[mm]		 Length (ℓ)
[mm]		 Weight
[kg]		 Compliant models JAN code Inventory Prices
RH8D X 1/4 3.6 11 5 35 0.02

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

RH model ring heads (inch sizes) Details 		4571141279496 Please contact us.
RH8D X 5/16 7.2 13.5 6 35 0.02

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

RH model ring heads (inch sizes) Details 		4571141279502 Please contact us.
RH8D X 3/8 12.2 15 7 35 0.02

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

RH model ring heads (inch sizes) Details 		4571141279519 Please contact us.
RH8D X 7/16 15 17 7 35 0.02

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

RH model ring heads (inch sizes) Details 		4571141279526 Please contact us.

QH Ratchet Head

QH ratchet heads have a small tightening radius to facilitate effective tightening in cramped areas. The square drive QH10D-1/4, QH15D-3/8 and QH22D-1/2 models are one size smaller than the regular models, so their sockets are cheaper.

QH Ratchet Head Dimension details
◆ How to order

Specify “Tohnichi”, then “Model”.

Example: Tohnichi QH10D

Note 1: For models with a square drive 25.4mm or larger, use with a through-hole socket.
Note 2: Use QH15D-3/8 and QH22D-1/2 at no more than the permissible torque (Tmax).
Note 3: See here for square drive dimensions.

Ask for inventory status and price.

Model/Type Allowable Torque
[N･m]		 Outside width
[mm]		 Thickness (t)
[mm]		 Length (ℓ)
[mm]		 Weight
[kg]		 Compliant models JAN code Inventory Prices
QH8D - 23 - 35 0.06

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

QH Ratchet Head Details 		4562135121266 Please contact us.

HH Hex Head

The HH hex head is to be used for hex socket bolts (cap screws). To be used with hex key inserted.

HH Hex Head Dimension details
◆ How to order

Specify “Tohnichi”, then “Model”.

Example: Tohnichi HH15D x 10

* Note 1: To be used with hex key inserted.
* Note 2: The HH8D is for hex 6.35 interchangeable bits, not for hex socket screw keys.
* Note 3: Models with a width across flats of 5 and 6 are hex; all other models are double hex.

Ask for inventory status and price.

Model/Type
Model (Body Size x Width)		 Allowable Torque
[N･m]		 Outside width
[mm]		 Thickness (t)
[mm]		 Length (ℓ)
[mm]		 Weight
[kg]		 Compliant models JAN code Inventory Prices
HH8D - 12 14.5 35 0.04

Coupling is possible if the Tohnichi interchangeable head torque wrench and interchangeable head dimensions are the same.

HH Hex Head Details 		4562135121471 Please contact us.
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