Hex Key Wrench Heads for TBIH & TBX-12 – FAQ & User Guide
Mountz Hex Key Wrench Heads are interchangeable heads designed for compatible TBIH and TBX-12 break-over torque wrenches. Available in imperial and metric sizes, these heads provide firm engagement with hex-type fasteners for controlled fastening applications.
Quick Answer
Mountz Hex Key Wrench Heads attach to compatible TBIH and TBX-12 break-over torque wrenches and are used with hex-type fasteners. TBIH Hex Key Wrench Heads are available in imperial and metric sizes from 0.050" to 3/4" and 1.5 mm to 5 mm, while TBX-12 Hex Key Wrench Heads are available from 1/16" to 1/4" and 1.5 mm to 5 mm.
What Are Hex Key Wrench Heads Used For?
Hex Key Wrench Heads are designed to engage hex-type fasteners.
Mountz describes these interchangeable heads as providing firm engagement with hex fasteners and offers them in multiple imperial and metric sizes for different fastening requirements.
TBIH Hex Key Wrench Heads
Mountz offers interchangeable Hex Key Wrench Heads for TBIH break-over torque wrenches.
Available sizes include:
- Imperial sizes from 0.050" to 3/4"
- Metric sizes from 1.5 mm to 5 mm
View Hex Key Wrench Heads:
TBX-12 Hex Key Wrench Heads
Mountz also offers interchangeable Hex Key Wrench Heads for TBX-12 break-over torque wrenches.
Available sizes include:
- Imperial sizes from 1/16" to 1/4"
- Metric sizes from 1.5 mm to 5 mm
Individual TBX-12 product pages confirm that these heads attach directly to the TBX-12 wrench. For example, the 3 mm model is listed as item 068652 and is specifically identified for attachment to the TBX-12.
View Hex Key Wrench Heads:
TBIH vs. TBX-12 Hex Key Wrench Heads
Hex Key Wrench Heads are offered for both TBIH and TBX-12, but they should be selected based on the wrench platform they are designed to fit.
| Wrench Platform | Hex Key Head Size Range |
|---|---|
| TBIH | 0.050" to 3/4"; 1.5 mm to 5 mm |
| TBX-12 | 1/16" to 1/4"; 1.5 mm to 5 mm |
Do not assume that a head listed for one wrench platform is interchangeable with the other unless Mountz specifically identifies it as compatible.
Selecting a Hex Key Wrench Head
When selecting a Hex Key Wrench Head, consider:
- Compatible torque wrench
- Hex fastener size
- Imperial or metric sizing
- Published product specifications for the individual head
Select a head that matches both the fastener and the wrench platform being used.
Can Custom Wrench Heads Be Requested?
Mountz states that it accommodates custom wrench head requests for specialized requirements.
If a standard Hex Key Wrench Head does not meet the application requirements, contact Mountz to discuss a custom solution.
Media & Supporting Content


Related Content
- Open, Box & Flare Wrench Heads for TBIH & TBX-12 FAQ
- TBIH Break-Over Torque Wrenches
- TBX Break-Over Torque Wrenches
- Mountz Hand Tools Sales Bang Sheet
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