Drill America 5/8ft-11 Left Hand 2ft OD HSS Round Adjustable Die

In this review of the Drill America 5/8'-11 2' OD High Speed Steel Left Hand Round Adjustable Die the bottom line is simple: this die is aimed at hobbyists and machinists who need a sharp, adjustable tool for cutting or re-threading left-hand threads on steel rod. The reviewer found the die cuts cleanly and feels well made in hand, delivering excellent cut quality on mild and medium steel. It is best chosen for tasks that require an adjustable round die for occasional production or repair work rather than heavy continuous industrial use.

Key Features

• Round die, bright finish: The polished surface helps reduce friction and makes it easier to align threads when starting cuts.
• High speed steel construction: HSS maintains sharpness and withstands heat better than common carbon dies, giving longer life when cutting metal.
• Left hand thread form: Specifically designed for left-hand applications where reverse-thread fasteners or components are required.
• Adjustable design: The included adjustment screw allows fine control of thread fit, helping match thread tightness to the mating part.
• For new threading and re-threading: Works both to create new threads and to restore damaged threads on existing rods and bolts.
• 2' outside diameter: The larger OD gives a stable grip in die stocks and better control through the cut.

Who It's For

This die suits small machine shops, firearm smiths, metalworkers and dedicated hobbyists who frequently need precision left-hand threads on round stock. It is particularly useful when users want an adjustable die that can be tuned to produce snug or slightly looser fits depending on the mating parts.

Those who should look elsewhere include users needing heavy production throughput or extreme durability under constant high-volume use; some customers reported mixed durability results and occasional issues with poorly machined threads, so heavy industrial applications may be better served by larger production-grade tooling.

Pros & Cons

Pros

• Well made HSS material gives sharp, consistent cuts and good value for money.
• Adjustable screw lets users tune thread fit for a range of jobs and materials.
• Bright finish and 2' OD improve alignment and handling in common die stocks.
• Effective for both new threads and re-threading damaged fasteners.

Cons

• Some customers report mixed thread quality and occasional machining inconsistencies, so inspect each die before precision work.
• Not ideal for very high-volume industrial production where hardened production dies are preferred.

Specifications

Brand	Drill America
Thread size	5/8'-11
Thread hand	Left hand
Material	High Speed Steel (HSS)
Outside diameter	2' OD
Finish	Bright
Type	Round adjustable die

Our Verdict

The Drill America 5/8'-11 left hand 2' OD HSS adjustable die is a practical, cost-effective choice for those needing reliable left-hand threads at hobby and small-shop scale. It offers sharp cutting performance and useful adjustability, making it good value for occasional production and repair work, while users with very high-volume needs should consider hardened production dies instead.

Frequently Asked Questions

Can this die cut new threads on mild steel?
Yes, the HSS material and sharp edges handle mild and medium steel well for new thread cutting.

Is the die adjustable to change thread fit?
Yes, the die includes an adjustment screw to tighten or loosen the thread fit to match mating parts.

Will this die work for right-hand threads?
No, this specific die is a left-hand thread die and is intended only for left-hand applications.