Hardened Steel
Not suitable for hardened steel.
Versadrive ImpactaDie Technical Guide & FAQ
Versadrive ImpactaDie is a patent-pending impact die system for cutting, repairing and cleaning external threads on bar, studs, bolts and threaded rod with an impact wrench. A guide sized to the bar holds the hex die square as it is driven, so the thread starts straight. This guide covers materials, impact wrenches, thread length, lubrication, adapters, components, best practice and recommended impact torque.
ImpactaDie (115100 holder) covers 1/4" to 1/2" UNC and M6 to M12. ImpactaDie XL (115300 holder) covers 5/8" to 1" UNC and M16 to M24.
Which Materials Can the Versadrive ImpactaDie Be Used On?
Stainless Steel
Suitable when used at higher impact torque settings with regular lubrication.
Non-Ferrous Metals
Suitable for non-ferrous materials.
Which Impact Wrench Should I Use?
ImpactaDie is designed for impact wrenches only. Select the correct torque using the torque table; if an exact match is not available, select the closest setting above the recommendation. Use a high-torque impact wrench for ImpactaDie XL sizes.
What Thread Length Can the ImpactaDie Produce?
ImpactaDie (115100 holder)
External threads up to 2" (50 mm) long per pass. 1/4" to 1/2" UNC and M6 to M12.
ImpactaDie XL (115300 holder)
External threads up to 3" (75 mm) long per pass. 5/8" to 1" UNC and M16 to M24.
Which Lubricant Should I Use for Die Threading?
SpeedLube
Recommended for all die threading applications. Shop SpeedLube ›
BioCut Paste
Not recommended for die threading.
BioCut Blue
Not recommended for die threading. Use SpeedLube.
Which Adapter Do I Need?
The holder connects to your impact wrench via a Versadrive impact adapter: 3/8", 1/2" or 3/4" drive. Select impact adapter ›
ImpactaDie Components and Specifications
Each ImpactaDie is built from a holder, a hex die nut, a collar and a guide, and connects to your impact wrench via an impact adapter. Use the Flush Collar without a guide for thread chasing and for threading close to a shoulder or obstruction; use the Guide Collar with a guide to create new threads. Die nuts, guides and collars only fit their own size of holder.
| ImpactaDie | ImpactaDie XL | |
|---|---|---|
| Thread sizes | 1/4" to 1/2" UNC · M6 to M12 | 5/8" to 1" UNC · M16 to M24 |
| Holder | 115100-01 | 115300-01 |
| Flush Collar (chase & repair) | 115100-03 | 115300-03 |
| Guide Collar | 115100-02 | 115300-02 |
| Hex die nut (across flats) | 24 mm | 36 mm |
| Max. thread length per pass | 2" (50 mm) | 3" (75 mm) |
| Holder length | 3-3/4" | 4-3/4" |
| Assembled length (holder, collar, guide) | 4-3/4" | 5-3/4" |
| Shank | 7/16" Versadrive | 7/16" Versadrive |
| Use with | Impact wrench | High-torque impact wrench |
| ImpactaBurr chamfer tool | 115200-0190 (bar 5/32" to 3/4") | 115200-0360 (bar 3/4" to 1-7/16") |
Best Practice & FAQ
How do I cut a thread?
- Chamfer the bar end with an ImpactaBurr.
- Fit the hex die nut, Guide Collar and guide for your thread size to the holder.
- Apply SpeedLube.
- Slide the guide over the bar and drive with firm, steady forward pressure, keeping the tool square.
- Reverse off with light or no pressure.
What is the correct feed pressure?
Apply firm, steady forward pressure while cutting. Reduce or remove the pressure when reversing the die off the thread.
How do I repair, chase or clean an existing thread?
Fit the Flush Collar (no guide needed) and start the die onto the existing thread by hand for the first turns to avoid cross-threading, then drive it with the impact wrench. The Flush Collar lets you thread close to a shoulder or obstruction. Cleaning needs less torque than cutting (see the torque table).
How many threads can I expect a die nut to cut?
There is no fixed number. Die life depends on material, thread size, lubrication, torque, workpiece condition and technique. Hex die nuts are sold separately, so only the die needs replacing.
How can I prevent chipping or breakage?
Keep the tool square to the bar and avoid lateral movement or tilting. Use steady pressure rather than excessive force, keep swarf flowing, and make sure the impact wrench delivers the recommended torque.
How can I improve thread accuracy?
Chamfer the bar properly, keep the collar and swarf area clean, and use the Guide Collar with the correct guide for the bar size.
What should I do if the thread becomes difficult?
Back the die off, clean the die and collar, re-apply lubricant and continue. Do not force the tool.
Which parts fit which holder?
Parts only fit their own size of holder: 1/4" to 1/2" and M6 to M12 parts fit the ImpactaDie holder (115100-01); 5/8" to 1" and M16 to M24 parts fit the XL holder (115300-01).
Recommended Impact Torque for Versadrive ImpactaDie
Select the correct torque for your impact wrench using the table below. If an exact match is not available, select the closest setting above the recommendation. Thread cleaning (chasing galvanized, painted or rusted threads) needs less torque than cutting a new thread.
| Thread Diameter | Thread Cutting | Thread Cleaning |
|---|---|---|
| 1/4" | 162 | 110 |
| 5/16" | 184 | 125 |
| 3/8" | 221 | 155 |
| 1/2" | 280 | 198 |
| 5/8" (XL) | 428 | 300 |
| 3/4" (XL) | 472 | 330 |
| 7/8" (XL) | 812 | 570 |
| 1" (XL) | 871 | 610 |
Metric sizes – Impact Torque (Nm)
| Thread Diameter | Thread Cutting | Thread Cleaning |
|---|---|---|
| M6 | 220 | 130 |
| M8 | 250 | 150 |
| M10 | 300 | 180 |
| M12 | 380 | 200 |
| M16 (XL) | 580 | 350 |
| M20 (XL) | 640 | 390 |
| M24 (XL) | 1100 | 700 |