Korloy S16R-STFCR-11 Boring Bar

A solid-shank internal turning bar from Korloy, the S16R-STFCR-11 is a right-hand boring bar designed for precision internal profiling and facing operations on lathes and turning centres. Built to accept TCMT/TCGT 11-series triangular inserts, this bar suits a wide range of internal diameter applications where clean geometry, rigidity, and consistent insert seating are non-negotiable. Whether you’re boring out a bearing housing, finishing a hydraulic cylinder bore, or undercutting a register, this is a bar you’ll reach for regularly.

16mm straight shank: A 16mm round shank gives a solid, low-vibration foundation in standard 16mm boring bar holders and quick-change toolposts — rigidity at this shank-to-overhang ratio means you’re fighting chatter less and getting finer surface finish without having to back off your feeds.
STFCR/L-11 toolholder geometry: The STFC pocket geometry positions a 60° triangular insert at a 0° lead angle with a negative rake seating, giving you three usable cutting edges per insert and predictable chip flow away from the bore wall — critical when you’re taking finish passes in blind bores where chip packing wrecks your surface.
Right-hand cutting (R suffix): Configured for conventional right-hand internal turning — cutting from depth toward the chuck face — which suits the majority of internal OD-reduction, bore finishing, and shoulder-facing operations on a standard lathe setup.
TCMT/TCGT 11-series insert compatibility: The 11-series seat accepts the widely available TCMT110204/110208 and TCGT110204 insert families across all major brands — Sandvik, Mitsubishi, Kyocera, Tungaloy, Korloy. That broad compatibility means you’re not locked into a single supplier for consumables.
Ideal for: Finishing and semi-finishing internal bores on CNC lathes and manual turning centres — specifically bearing housing bores, hydraulic cylinder finishing, spigot and register bores, stepped bore profiles, and light internal facing on aluminium, mild steel, alloy steel, and stainless.

Condition

New

This boring bar is new in its original Korloy packaging — unused, with no signs of wear, handling marks, or storage damage on the shank, pocket, or clamping surfaces. The insert seat, screw thread, and clamp geometry are untouched, so you’re getting a bar that’ll seat your first insert true and hold it there consistently from the first cut. The tool arrives ready to go straight into your holder and onto the machine — no cleaning, no inspection for wear, no concerns about previous abuse on someone else’s lathe.

Each bar in this listing comes with a pack of 10 inserts. The insert packs are sourced from Japanese manufacturers — brands include Tungaloy, Sandvik (Japanese-produced), and similar top-tier suppliers, and the pack included with your bar may vary. All insert packs are new and sealed. If insert grade, geometry, or brand specifics matter for your application — and they should — please enquire before purchasing and we’ll confirm exactly what’s included with your bar.

Included:

1 x Korloy S16R-STFCR-11 Boring Bar (16mm shank, right-hand, TCMT/TCGT 11-series)
1 x Original Korloy box/packaging
1 x New sealed pack of 10 Japanese-brand TCMT/TCGT 11-series inserts (brand may vary — Tungaloy, Sandvik, etc. — enquire for specifics)

Not included: Boring bar holder / quick-change toolpost block, insert clamping screw (if not present in pack), torx/hex key for insert clamping.

Brand Information

Korloy is a South Korean cutting tool manufacturer with a strong foothold in the Asia-Pacific industrial market, producing a comprehensive range of turning, milling, and drilling tooling that competes directly with Sandvik Coromant, Mitsubishi Materials, and Kyocera at a more accessible price point. Their carbide insert and toolholder geometry engineering is well-regarded in production and jobbing shop environments where reliability and consistent insert seating matter as much as brand prestige. Korloy tooling is a practical, no-nonsense choice for shops that want proven geometry and wide insert compatibility without paying a premium for European or Japanese branding.

Specifications

Feature	Specification
Brand	Korloy
Model	S16R-STFCR-11
Type	Solid shank internal boring bar / turning bar
Cutting Direction	Right-hand (R)
Shank Diameter	16mm
Insert Style Compatibility	TCMT / TCGT 11-series (60° triangular, negative rake seating)
Toolholder System	STFCR (screw clamp, 0° lead angle, right-hand)
Usable Cutting Edges per Insert	3 (triangular insert geometry)
Compatible Insert Brands	Korloy, Sandvik, Mitsubishi, Kyocera, Tungaloy (TCMT/TCGT 11xx series)
Country of Origin	South Korea (Korloy)
Condition	New (Factory Sealed)
Included Items	Boring bar in original box; 1 x pack of 10 Japanese-brand inserts (Tungaloy, Sandvik, or similar — enquire for specifics)
Not Included	Boring bar holder, clamping key, setting ring

Keywords

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Korloy

Korloy S16R STFCR-11 Boring Bar

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