AUTOKAY 5/8-24 UNEF Tap and Die Set
- Material Type: High Speed Steel (HSS)
- Shank Type: Straight
- Tool Flute Type: Straight
- Number Of Flutes: 2
Last refreshed Jun 25, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B07NZP1CXMCategory: Hand Threading Taps
Overview
An HSS 5/8 inch-24 UNEF right hand tap and die set, one tap and one die, sized for cutting or re-chasing 5/8-24 threads such as those on AR-15 muzzle devices.
It reads as a light-duty HSS import set rather than a production shop tool, and arrives packed loose with no cutting edge protection.
- 5/8 inch (0.625in / 15.875mm) diameter, 24 TPI, UNEF thread
- Right hand cutting direction
- HSS tap and die pair in one package
- Suited to steel, alloy steel and cast iron
Who it's for
Hobbyists and home gunsmiths doing occasional 5/8-24 thread work, or anyone needing to chase damaged UNEF threads at this size in soft to medium metals.
Pros and cons
- Matches 5/8-24 muzzle thread on AR-15 devices
- Includes both tap and die in one set
- HSS holds up to light, lubricated use
- Packed loose with no edge protection
Performance notes
As a UNEF extra fine thread, 24 TPI cuts a shallower thread than a coarse UNC tap of the same diameter, matching the muzzle thread standard used on AR-15 pattern rifles.
Specifications
| Brand | Autokay |
|---|---|
| Dimensions & fit | |
| Cutting Diameter | 0.6 inches |
| Construction & materials | |
| Material Type | High Speed Steel (HSS) |
| Finish Types | Uncoated |
| Included components | |
| Number Of Pieces | 2 |
| Unit Count | 2 |
| Other details | |
| Shank Type | Straight |
| Tool Flute Type | Straight |
| Number Of Flutes | 2 |
| Part Number | 5/8 x 24 tap |
| Point Style | Screw Point |
| Set Name | AUTOKAY New HSS 5/8"-24 UNEF Right Hand Thread Tap And Die Set (5/8x24) RH |
| Surface Recommendation | Cast Iron, Metal |
Frequently asked questions
Does the set include both a tap and a die?
Yes, one 5/8-24 tap and one matching die ship together.