M28 x 3 Round Die 2in OD HSS Threading Die - Precision Cut

In this review the Drill America M28 x 3 2in OD HSS round die is evaluated for hobby machinists and light industrial use; the bottom line is that it is a sharp, well-made cutting tool that delivers clean threads on steel when used correctly. The reviewer found it best suited to users who need a durable steel die with a bright finish for making new threads or re-threading existing shafts, and appreciated the adjustment screw for controlled cutting. It is not a consumer-grade novelty - it is intended for real threading work.

Key Features

• Round die construction: The circular form lets the die be mounted in standard die stocks for versatile on-shaft threading and die-stock use.
• HSS material: High-speed steel keeps the cutting edges sharp and resilient when threading common steels and ferrous alloys.
• Bright finish: The polished surface reduces friction and makes it easier to remove chips and inspect the cutting face.
• Adjustment screw: Built-in screw allows the operator to fine-tune thread engagement for a looser or tighter fit during cutting.
• Made in United States: Domestic manufacture provides consistent machining and traceable quality control compared with unknown imports.

Who It's For

This die is aimed at machinists, gunsmiths, and maintenance technicians who need a reliable way to cut or restore M28 x 3 threads on rod or barrel work. It is particularly useful when a precise metric pitch and robust HSS construction are required for repetitive or workshop tasks.

Hobbyists who only occasionally chase minor threads with soft materials may find it heavier-duty than necessary, and users needing multi-size convenience might prefer a set rather than a single dedicated die. It is not a turnkey solution for users unfamiliar with die holding and setup.

Pros & Cons

Pros

• Sharp HSS cutting edges produce clean, crisp thread profiles when properly aligned and lubricated.
• The bright finish and solid round construction make chip clearance and handling straightforward in a die stock.
• Adjustment screw gives control over thread fit, which is helpful when matching mating parts.

Cons

• Some users report mixed results on thread quality and durability, so finish and performance can depend on machine setup and material condition.
• As a single-size tool, it lacks the flexibility of a multi-die set for varied projects.

Specifications

Product	M28 x 3 round die
Outer diameter	2in OD
Material	High-speed steel (HSS)
Finish	Bright finish
Use	Make new threads or re-thread existing threads
Adjustment	Includes adjustment screw for fit control
Country of origin	United States

Our Verdict

The M28 x 3 2in OD HSS round die is a solid choice for professionals and serious hobbyists who need a durable, sharp tool for metric threading work. It offers good value for money when used with proper technique and lubrication, and the adjustment screw adds useful control; those needing multiple sizes or who expect flawless out-of-the-box threads in every condition should plan to check alignment and sharpening as needed.

Frequently Asked Questions

Can this die cut new threads on steel rod?
Yes, the HSS construction and sharp geometry are suitable for cutting new threads on steel when used with appropriate cutting oil and steady feed.

Will it fit my die stock?
It is a standard round die sized at 2in OD and is intended for use in common die stocks that accept 2in round dies.

Is the adjustment screw useful?
The adjustment screw lets you control thread tightness during cutting, which many users find helpful, though some report mixed results depending on setup and material.