3PCS 5/8in Metal Lathe Indexable Carbide Turning Tool Holder Bit Set

In this review of the 3PCS 5/8in Metal Lathe Excircle Indexable Carbide Turning Tool Holder Bit Set, the reviewer finds it best suited for hobbyists and light industrial machinists who need a compact, ready-to-use turning kit. The bottom line: the set bundles three different holder styles with matching carbide inserts and wrenches, making it a convenient starter pack for 5/8in shank turning work. The reviewer highlights the solid build quality and the practicality of getting three holders and three inserts in one purchase for quick tool changes.

Key Features

• Three holder styles included: The MTJNR, MWLNR and MCLNR holders cover common turning operations so the user can tackle roughing and finishing without buying separate holders.
• 5/8in shank size: The 5/8in x 5/8in (16 x 16mm) shank is a compact size that fits many small lathes and fixtures for stable clamping and repeatable setups.
• Complete kit packaging: Each kit ships with 3 holders, 3 wrenches, 3 carbide inserts and 3 shims so the set is ready to install and use out of the box.
• Durable finish and hardness: Holders are black oxidized with a hardness around HRC 48 delivering a hard wearing surface and precise machining tolerances.
• Right-hand cutting: Each holder is set up for right-hand cutting which simplifies selection for standard turning tasks on most lathes.

Who It's For

The set is aimed at small shop machinists, metalworking hobbyists, and maintenance technicians who want a concise selection of indexable turning tools for 5/8in shank toolposts. It is particularly useful for those who prefer buying a matched set with inserts and wrenches included so they can change tooling quickly during a job.

Those who should look elsewhere include operators needing left-hand holders or a broader range of specialized insert geometries, and heavy production shops that require larger shank diameters or carbide grades tuned for high-volume cutting. This kit is best for light to medium duty turning rather than heavy interrupted cuts.

Pros & Cons

Pros

• Convenient three-holder kit provides MTJNR, MWLNR and MCLNR styles for varied turning tasks.
• Includes inserts, shims and wrenches so the set is ready for immediate use without extra purchases.
• Black oxide finish and HRC 48 hardness give a durable, precise holder with good wear resistance.
• Compact 5/8in shank works well on small to medium lathes and toolposts.

Cons

• All holders are right-hand cutting, so users needing left-hand tools must buy a separate set.
• The set is focused on general turning; shops needing specialized insert grades or larger shanks may find it limited.

Specifications

Model	MTJNR1616H16 + MWLNR1616H08 + MCLNR1616H12
Package Included	3 holders, 3 wrenches, 3 carbide inserts, 3 shims
Shank Diameter	5/8in x 5/8in (16 x 16mm)
Overall Length	3-7/8in (100mm)
Cutting Direction	Right hand
Surface Finish	Black oxidized
Tool Hardness	Approximately HRC 48

Our Verdict

For the price-conscious machinist who needs a compact, ready-to-use set of indexable turning holders, this 3PCS kit is a practical value. It delivers three commonly used holder styles, matched inserts and setup tools in a single purchase, making it a sensible choice for small shops and hobbyists who perform general turning on 5/8in shank toolposts.

Frequently Asked Questions

Are the inserts included with the holders?
Yes, the kit includes 3 carbide inserts (wnmg432, cnmg432, tnmg332) along with shims and wrenches.

What shank size do these holders use?
Each holder has a 5/8in x 5/8in (16 x 16mm) shank and an overall length of about 3-7/8in (100mm).

Can these be used for left-hand cutting?
No, the set is configured for right-hand cutting; left-hand holders must be purchased separately.