Quick Answer
Mountz Calibration Hex Step Adapters are used when testing open-ended wrenches. Each adapter features four hex dimensions, providing multiple wrench sizes on a single adapter to help make the wrench calibration process simple and efficient. Models are available in American and metric sizes with either a 1/4-inch or 3/8-inch square drive.
What Is a Calibration Hex Step Adapter Used For?
Calibration Hex Step Adapters are designed for testing a standard range of open-ended wrenches.
The stepped design provides four different hex sizes on a single adapter, allowing the appropriate section of the adapter to be matched to the wrench being tested.
Mountz identifies the four-size design as a way to increase productivity and improve the wrench calibration process.
How Does a Hex Step Adapter Work?
Each adapter contains four hex dimensions, identified as A, B, C, and D.
The appropriate hex dimension is selected based on the size of the open-ended wrench being tested. The adapter's square drive connects it to compatible calibration or torque measurement equipment.
The available configurations provide:
- Four hex sizes per adapter
- American or metric sizing
- 1/4-inch or 3/8-inch square drive
- Multiple adapters for covering different wrench sizes
Available 1/4-Inch Square Drive Models
All 1/4-inch square drive models have a maximum torque capacity of 30 N·m.
| Size Type | Item # | A | B | C | D | Max Torque |
|---|---|---|---|---|---|---|
| American | 061500 | 3/4" | 11/16" | 5/8" | 9/16" | 30 N·m |
| American | 061501 | 5/16" | 3/8" | 7/16" | 1/2" | 30 N·m |
| American | 061527 | 1/2" | 3/8" | 1/4" | 1/8" | 30 N·m |
| American | 061630 | 1/4" | 7/32" | 3/16" | 5/32" | 30 N·m |
| American | 061502 | 1/4" | 7/32" | 3/16" | 1/8" | 30 N·m |
| Metric | 061503 | 19 mm | 17 mm | 16 mm | 14 mm | 30 N·m |
| Metric | 061504 | 13 mm | 12 mm | 11 mm | 10 mm | 30 N·m |
| Metric | 061505 | 9 mm | 8 mm | 7 mm | 6 mm | 30 N·m |
| Metric | 061529 | 9 mm | 7 mm | 5 mm | 3 mm | 30 N·m |
| Metric | 061528 | 8 mm | 6 mm | 4 mm | 2 mm | 30 N·m |
| Metric | 061506 | 5.5 mm | 5 mm | 4.5 mm | 4 mm | 30 N·m |
Available 3/8-Inch Square Drive Models
All 3/8-inch square drive models have a maximum torque capacity of 135 N·m.
| Size Type | Item # | A | B | C | D | Max Torque |
|---|---|---|---|---|---|---|
| American | 061559 | 1 1/4" | 1 1/8" | 1 1/16" | 1" | 135 N·m |
| American | 061537 | 1" | 7/8" | 3/4" | 5/8" | 135 N·m |
| American | 061524 | 3/4" | 11/16" | 5/8" | 9/16" | 135 N·m |
| American | 061531 | 9/16" | 7/16" | 5/16" | 3/16" | 135 N·m |
| American | 061525 | 1/2" | 7/16" | 3/8" | 5/16" | 135 N·m |
| American | 061530 | 1/4" | 7/32" | 3/16" | 1/8" | 135 N·m |
| Metric | 061543 | 19 mm | 17 mm | 16 mm | 14 mm | 135 N·m |
| Metric | 061542 | 17 mm | 15 mm | 13 mm | 11 mm | 135 N·m |
| Metric | 061541 | 16 mm | 14 mm | 13 mm | 10 mm | 135 N·m |
| Metric | 061540 | 13 mm | 12 mm | 11 mm | 10 mm | 135 N·m |
| Metric | 061539 | 9 mm | 8 mm | 7 mm | 6 mm | 135 N·m |
| Metric | 061538 | 5.5 mm | 5 mm | 4.5 mm | 4 mm | 135 N·m |
Selecting a Calibration Hex Step Adapter
When selecting an adapter, consider:
- Open-ended wrench size
- American or metric sizing
- Required square drive
- Maximum torque capacity
- Hex dimensions provided by the adapter
Choose an adapter that provides the appropriate hex size for the wrench being tested and does not exceed the adapter's maximum torque capacity.
Square Drive Standards
According to the Mountz product data sheet, the square drive meets:
- ASME B107.300-2010
- ISO 6789-1:2017
Media & Supporting Content
Related Content
- Torque Analyzers
- Torque Sensors
- Calibration Segment Arms
- Calibration Wheel
- Calibration Equipment
- Webinar: Learn How to Calibrate a Torque Analyzer and Torque Sensor
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
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