Structural Steel
All HMT tooling in this category is suitable for common grades of steel.
HMT VERSADRIVE IMPACTADIE DIE THREADER – TECHNICAL GUIDE
The HMT Versadrive ImpactaDie system is designed for creating or cleaning external threads on bolts, studs and threaded bar. This guide covers material suitability, suitable machines, workpiece preparation, lubrication, best practice and recommended impact torque for thread cutting and thread cleaning.
Which Materials Can the HMT Versadrive ImpactaDie Be Used On?
Hardened Steel
This tooling is not generally suitable for hardened steel applications.
Stainless Steel
Suitable for harder materials such as stainless steel when used with reduced RPM and higher torque settings.
Non-Ferrous Metals
All HMT tooling in this category is suitable for non-ferrous materials.
Which Machine Should I Use With the ImpactaDie?
| Machine | Suitable? | Guidance |
|---|---|---|
| Impact Wrench | Yes | Recommended for ImpactaDie threading applications. Use the correct torque setting for the die size and application. |
| Rotary Pistol Drill | No | ImpactaDie is not recommended for use with pistol drills. |
| Compact Magnet Drill | No | Not recommended. |
| Large Magnet / Pillar Drill | Limited / generally not recommended | These machines are generally not suitable for this threading application unless there is a very specific compatible setup. |
What Thread Length Can the ImpactaDie Produce?
The ImpactaDie 115100 holder can create external threads up to approximately 50 mm in length.
The ImpactaDie 115900 holder can create external threads up to approximately 79 mm in length.
Which Lubricant Should I Use for Die Threading?
SpeedLube
Recommended for ImpactaDie applications.
BioCut Paste
Not recommended for die threading.
BioCut Blue
Not normally recommended for ImpactaDie threading.
Which Adapters Can I Use With the ImpactaDie?
Impact Adapters
Suitable for use with impact wrenches. Refer to the correct torque guidance.
Pistol Drill / Chuck
Not recommended.
Weldon Adapters
Not normally applicable for ImpactaDie applications.
Morse Taper Adapters
Not normally applicable for ImpactaDie applications.
HMT Versadrive ImpactaDie Best Practice
How should I prepare the workpiece?
Before cutting the thread, chamfer the end of the fastener or workpiece.
Use a suitable ImpactaBurr chamfer tool to create a consistent chamfer before threading.
What is the correct feed pressure?
Apply firm forward pressure to start and cut the thread.
When reversing the tool to remove the die threader from the fastener, reduce or remove the forward pressure.
How many threads can I expect the tool to produce?
There is no fixed number.
Tool life varies significantly depending on material, thread size, lubrication, torque, workpiece condition and operating technique.
How can I prevent chipping or breakage?
Avoid lateral movement or tilting.
Do not use excessive feed pressure.
Keep the tool controlled and square to the workpiece.
Maintain a consistent flow of swarf.
How can I improve thread accuracy?
Make sure the workpiece is correctly chamfered before threading.
Keep the Die Holder Collar and removable swarf area clean.
Use the Guide Collar and Guide to help keep the die aligned with the fastener or workpiece.
What should I do if the thread becomes difficult?
For difficult threading or re-threading applications, periodically check the Die and ImpactaDie Holder Collar and remove swarf as required.
Do not force the tool if the thread is not progressing correctly.
How do I avoid cross-threading when re-threading an existing thread?
When re-threading an existing thread, take care to locate the die correctly in the existing thread before applying power.
Where possible, start the die by hand to ensure correct engagement before driving it with the impact wrench.
Recommended Impact Torque for HMT Versadrive ImpactaDie
Recommended impact torque varies according to thread size and whether the operation is thread cutting or thread cleaning.
| Thread Size | Thread Cutting | Thread Cleaning | Unit |
|---|---|---|---|
| Metric | |||
| M6 | 220 | 130 | Nm |
| M8 | 250 | 150 | Nm |
| M10 | 300 | 180 | Nm |
| M12 | 380 | 200 | Nm |
| M16 | 580 | 350 | Nm |
| M20 | 640 | 390 | Nm |
| M24 | 1100 | 700 | Nm |
| M25 | 1180 | 770 | Nm |
| Fractional | |||
| 1/4" | 162 | 110 | ft lb |
| 5/16" | 184 | 125 | ft lb |
| 3/8" | 221 | 155 | ft lb |
| 1/2" | 280 | 198 | ft lb |
| 5/8" | 428 | 300 | ft lb |
| 3/4" | 472 | 330 | ft lb |
| 7/8" | 812 | 570 | ft lb |
| 1" | 871 | 610 | ft lb |