IPT Preset Click Torque Wrenches

Quick Answer

The IPT-Series is a line of preset click torque wrenches designed for repetitive fastening at a predetermined torque value.

Unlike an adjustable click wrench with an external scale, the IPT uses a tamper-resistant internal torque adjustment. The torque value must be preset and verified using a torque analyzer. When the preset torque is reached, the wrench produces a positive click that can be heard and felt, signaling the operator to stop applying force.

The IPT lineup includes eight models covering torque ranges from 3.7 lbf.ft to 885.6 lbf.ft (5 to 1200 N·m), with square drive sizes from 1/4" to 1".

Who This Is For

Manufacturing engineers
Process engineers
Quality engineers
Assembly operators
Production supervisors
Maintenance technicians
Automotive manufacturers
Aerospace manufacturers
Heavy equipment manufacturers
General industrial production facilities

When Should You Use This?

Use the IPT when:

Repetitive fastening is performed at the same torque setting
Preventing operators from changing the torque setting is important
A preset wrench is preferred for production control
An audible and tactile indication of reaching torque is required
A square-drive ratchet wrench is appropriate for the application
Industrial durability is required
Medium- to high-torque fastening is required
Consistent torque application across multiple fastening cycles is a priority

The preset design is particularly useful for production environments where operators repeatedly tighten fasteners to the same specified torque.

When Should You NOT Use This?

The IPT may not be the best choice when:

Operators need to frequently change torque settings
A visible external torque scale is required
Multiple torque values must be set quickly during a single process
A break-over or cam-over mechanism is preferred
Electronic torque measurement or fastening data collection is required
Torque-angle measurement is required
A digital torque display is needed

For applications requiring frequent torque adjustment, consider the EPT Adjustable Click Torque Wrench instead.

How the IPT Works

The IPT uses a preset internal torque mechanism and click action to indicate when the target torque has been reached.

During operation:

The wrench is preset internally to the required torque value.
The setting is verified using a torque analyzer.
The operator installs the appropriate socket onto the square drive.
Torque is applied smoothly to the fastener.
When the preset torque is reached, the wrench produces a positive click that can be heard and felt.
The operator stops applying force after the click.

Result:

Consistent application of the preset torque
Reduced opportunity for unintended operator adjustment
Clear indication when target torque is reached
Improved process control during repetitive fastening
Simplified operation for production personnel

The IPT has no external adjustment scale, helping protect the selected setting during routine use.

Core Features

Preset click torque wrench
Tamper-resistant internal torque adjustment
No external torque adjustment scale
Torque setting verified using a torque analyzer
Positive click can be heard and felt when torque is reached
Bi-directional ratchet head
48-tooth ratchet
Square drive design
Robust steel shaft
High corrosion resistance
Lightly knurled non-slip grip
Designed for industrial fastening applications
Eight models covering 5 to 1200 N·m
Preferred and certified ranges in accordance with ISO 6789 at ±4% of indicated setting

Available Models

The IPT-Series includes eight preset click wrench models, providing different torque capacities, drive sizes, wrench lengths, and weights.

IPT Model Chart

Model	Item #	American Torque Range	S.I. Torque Range	Drive Size	Length	Weight
IPT 18	280041	3.7–18.4 lbf.ft	5–25 N·m	1/4" Sq. Dr.	8 7/8"	0.7 lbs
IPT 36	280042	7.4–36.9 lbf.ft	10–50 N·m	3/8" Sq. Dr.	11 7/8"	1.4 lbs
IPT 73	280043	14.8–73.8 lbf.ft	20–100 N·m	3/8" Sq. Dr.	14 3/4"	1.8 lbs
IPT 110	280044	22.1–110.7 lbf.ft	30–150 N·m	3/8" Sq. Dr.	15 1/4"	2.4 lbs
IPT 150	280045	29.5–147.6 lbf.ft	40–200 N·m	1/2" Sq. Dr.	19 2/3"	2.9 lbs
IPT 250	280046	44.3–250.9 lbf.ft	60–340 N·m	1/2" Sq. Dr.	23 1/8"	3.9 lbs
IPT 369	280047	73.8–369 lbf.ft	100–500 N·m	3/4" Sq. Dr.	34"	12.1 lbs
IPT 885	280048	171.1–885.6 lbf.ft	240–1200 N·m	1" Sq. Dr.	58 1/4"	13 lbs

The product data sheet lists eight models with drive sizes increasing from 1/4" to 1" as torque capacity increases.

Model Selection Guide

If you need:	Recommended Model
Lowest IPT torque range	IPT 18
Up to 36.9 lbf.ft	IPT 36
Up to 73.8 lbf.ft	IPT 73
Up to 110.7 lbf.ft	IPT 110
Up to approximately 150 lbf.ft	IPT 150
Up to 250.9 lbf.ft	IPT 250
Up to 369 lbf.ft	IPT 369
Highest IPT torque capacity	IPT 885
Compact 1/4" drive wrench	IPT 18
3/8" square drive	IPT 36, IPT 73, or IPT 110
1/2" square drive	IPT 150 or IPT 250
3/4" square drive	IPT 369
1" square drive	IPT 885

Torque Adjustment

The IPT does not have an external torque scale. The required torque value is set through the wrench's internal adjustment mechanism and verified using a torque analyzer.

The adjustment method depends on the IPT model.

IPT 18 through IPT 250

The IPT Torque Adjusting Set Key, Item #280049, is required to adjust the internal torque setting on:

IPT 18
IPT 36
IPT 73
IPT 110
IPT 150
IPT 250

The adjusting key is sold separately.

IPT 369 and IPT 885

The larger IPT models use a different adjustment method. The following tools are required to adjust the internal torque setting:

3 mm Allen key
Extension bar
Ratchet wrench or handle

Setting & Verifying Torque

Because there is no external adjustment scale, a torque analyzer is required to establish and verify the IPT's preset torque value.

General process:

Determine the required torque value.
Select a torque analyzer or sensor that covers the required range.
Use the appropriate adjustment method for the IPT model.
Make an initial adjustment to the internal torque setting.
Apply torque smoothly to the analyzer until the wrench clicks.
Review the measured torque value.
Adjust the wrench as necessary.
Repeat the test until the desired torque setting is achieved.
Verify the final setting before placing the wrench into production.

Once properly preset, operators can use the IPT without needing to select a torque value during normal fastening.

IPT vs. EPT Click Wrenches

The primary difference between the IPT and EPT is how the torque setting is adjusted.

Feature	IPT	EPT
Torque Type	Preset	Adjustable
External Torque Scale	No	Yes
Internal Adjustment	Yes	No
Torque Analyzer Needed to Set Torque	Yes	No for routine adjustment
Operator Can Easily Change Setting	No	Yes
Click Indication	Audible & tactile	Audible & tactile
Ratchet Head	Bi-directional	Bi-directional
Best For	Repetitive fastening at one torque setting	Applications requiring multiple torque settings

Choose the IPT when the same torque setting will be used repeatedly and restricting operator adjustment is beneficial.

Choose the EPT when operators need to change torque values for different fastening requirements.

Calibration & Accuracy

The IPT should be periodically calibrated and verified as part of the facility's torque control program.

The preferred and certified ranges of the IPT-Series are in accordance with the requirements of ISO 6789 at ±4% of the indicated setting.

Because the IPT is preset internally, torque should also be verified after changing its setting and before returning the wrench to production.

Common Applications

The IPT-Series is commonly used in:

Automotive assembly
Aerospace assembly
Heavy equipment manufacturing
Industrial machinery assembly
Equipment manufacturing
Production fastening
Maintenance operations
Repetitive bolting applications
Dedicated assembly stations
Applications requiring controlled preset torque

Use Cases (Real-World Examples)

Repetitive Production Fastening

Problem: Operators repeatedly tighten the same fastener to the same torque value.

Solution: The IPT can be preset to the required torque, allowing operators to perform repetitive fastening without adjusting the wrench between cycles.

Production Error-Proofing

Problem: An externally adjustable wrench allows operators to accidentally change the torque setting.

Solution: The IPT uses a tamper-resistant internal adjustment with no external scale, helping protect the established torque setting during normal production use.

Dedicated Assembly Station

Problem: A workstation requires one torque value throughout the production process.

Solution: The IPT can be configured and verified for that specific torque value, creating a dedicated fastening tool for the workstation.

High-Torque Industrial Fastening

Problem: Large industrial fasteners require substantially higher torque than typical assembly applications.

Solution: The IPT lineup extends through the IPT 885, covering 171.1–885.6 lbf.ft (240–1200 N·m) with a 1" square drive.

Maintenance

Keep the wrench clean and free of debris.
Inspect the ratchet head, square drive, steel shaft, grip, and internal adjustment components for wear or damage.
Periodically verify torque output using a calibrated torque analyzer.
Recalibrate according to your facility's calibration schedule and quality requirements.
Verify torque after changing the internal preset setting.
Apply torque smoothly and consistently during use and verification.
Use the appropriate adjustment tooling for the specific IPT model.
Remove damaged or improperly functioning tools from service until inspected or repaired.

Integration & Advanced Notes

Mechanical preset click torque wrench requiring no electrical power
Internal adjustment helps prevent routine operator setting changes
No external torque scale
Torque analyzer required when establishing the preset value
Eight models covering 5 to 1200 N·m
Square drive sizes from 1/4" to 1"
Bi-directional 48-tooth ratchet head
Audible and tactile click indication
Steel shaft with high corrosion resistance
Knurled non-slip grip
Separate IPT Torque Adjusting Set Key used for IPT 18 through IPT 250
Different adjustment tooling required for IPT 369 and IPT 885
No electronic data collection or traceability

Media & Supporting Content

Need Help?

Contact Applications Engineering for setup guidance
Speak with Sales for product selection
Call us:
- North America:(408) 850-9978
- International: +44 1428 741756

IPT Preset Click Torque Wrenches – FAQ & User Guide