Accusize 1ft x 12ft S16T-SCLCR4 Indexable Boring Bar - Precision

In this review the Accusize 1' by 12' indexable boring bar is judged as a pragmatic choice for hobbyists and small-shop machinists who need a compact, accurate profiling tool. The single biggest reason to buy is its combination of a 1' shank and 12' overall length matched to 80 degree CCMT carbide inserts, which delivers fast semi-finishing and finishing passes with a notably fine gloss finish. The review focuses on real-world fit, finish and cutting behavior rather than marketing claims.

Key Features

• Shank and length: The 1' shank diameter with a 12' overall length provides rigidity for small lathes while still reaching into bores for profiling work.
• Insert compatibility: Accepts CCMT 32.51 or CCMT 32.52 inserts so users can run common 80 degree diamond carbide inserts for finishing passes.
• Cutting geometry: The negative 5 degree end and side cutting angles reduce chatter and support repeatable bore diameter control in semi-finishing and finishing operations.
• Hardness and finish: With a bar hardness of approximately 45HRC and an extreme fine gloss finish, the tool has the build quality and surface treatment expected for accurate profiling.
• Included accessories: The package includes a matching CCMT insert and the key, so the bar is ready for setup out of the box.

Who It's For

This boring bar is aimed at small machine shop operators, hobby machinists and lathe owners who need a compact, indexable solution for boring, profiling and finishing tasks. It is particularly useful where bore diameter accuracy and a fine surface finish are priorities, and it performs well on smaller lathes and with common tool post setups.

Owners of larger industrial lathes or those needing long-reach or heavy stock removal should look elsewhere: the 12' overall length and 1' shank make this a precision finishing and semi-finishing tool rather than a heavy roughing bar.

Pros & Cons

Pros

• Well built with a fine gloss finish that contributes to consistent cut quality.
• Compatible with standard CCMT 32.51 and 32.52 inserts for easy replacement and adaptability.
• Negative 5 degree end and side angles help achieve quick, accurate final diameters.
• Good value for money for small-lathe use according to customer feedback.

Cons

• Assembly quality has mixed feedback, so small adjustments at setup may be required for perfect alignment.
• Not intended for heavy stock removal or long-reach boring beyond its 12' length.

Specifications

Our Verdict

The Accusize 1' x 12' S16T-SCLCR4 boring bar is a practical choice for machinists who prioritize bore accuracy and a fine finish on small lathes. It offers solid build quality, standard CCMT insert compatibility and a geometry that helps obtain final diameters quickly, making it good value for semi-finishing and finishing tasks.

Frequently Asked Questions

Does it come with inserts?
Yes, a CCMT 32.51 or CCMT 32.52 insert and the key are included so the bar is ready to use.

Will it fit my small lathe tool post?
The 1' shank is suitable for many small lathe setups and has been reported to work with common tool post assemblies; check fitment against your post and holder before purchase.

Is it suitable for roughing cuts?
No, this bar is intended for semi-finishing and finishing; heavy stock removal or long-reach roughing is outside its design intent.