Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

Image not available
DORIANIndexable Boring Bars

DORIAN Indexable Boring Bar: S20U-MTUNR-3 (MPN 73310155212)

SKU 3G-OTH-220576

Brand
DORIAN
Item
Indexable Boring Bar: S20U-MTUNR-3
Category
Indexable Boring Bars
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

DORIAN
Manufacturer Part Number
73310155212
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

DORIAN Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the DORIAN Indexable Boring Bar S20U-MTUNR-3 used for?

The DORIAN Indexable Boring Bar S20U-MTUNR-3 is used for precision internal boring operations in metalworking. It is designed for use with indexable carbide inserts, making it suitable for machining bores, enlarging holes, and achieving tight tolerances in industries such as automotive, aerospace, and general manufacturing.

What are the specifications of the DORIAN Indexable Boring Bar S20U-MTUNR-3?

The DORIAN Indexable Boring Bar S20U-MTUNR-3 has the model number S20U-MTUNR-3 and manufacturer part number 73310155212. It is an indexable boring bar designed for internal turning operations. For detailed dimensional and insert compatibility specs, consult the DORIAN technical documentation.

Where to buy the DORIAN Indexable Boring Bar S20U-MTUNR-3 worldwide?

You can source the DORIAN Indexable Boring Bar S20U-MTUNR-3 worldwide through 3G Electric. As a global industrial equipment distributor since 1990, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact 3G Electric for availability and lead time.

How to select the correct DORIAN Indexable Boring Bar for my application?

To select the correct DORIAN Indexable Boring Bar, match the bar size and shank diameter to your machine tool's tool holder. Consider the bore depth and diameter required, and choose an insert geometry suitable for your workpiece material. The S20U-MTUNR-3 is a common choice for general-purpose boring. Consult DORIAN's catalog for guidance.

Used in

Common applications for DORIAN
General turning and profiling on manual lathes — DORIAN MDJNL165D indexable toolholder with DNMG inserts
Hard turning of hardened steel components (45-65 HRC) — DORIAN CCGT-21.51-NFU diamond inserts (CBN grade)
Quick-change tooling for job shops with frequent setup changes — DORIAN SDN50DA tool post for 17-32 in lathe swings
Finishing operations on non-ferrous materials (aluminum, brass) — DORIAN CCGT-060204-NFU PCD inserts
Replacement of worn clamp screws in indexable toolholders — DORIAN finger clamp screw MPN 73310190901
Profiling and contouring on CNC lathes — DORIAN MCLNR246E toolholder with CNMG inserts

DORIAN Products

3G Electric supplies DORIAN indexable boring bars. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
DORIAN
DORIAN
DORIAN Indexable Boring Bar: S20U-MTUNL-3 (MPN 73310155213). Key specifications — attr257292: S20U-MTUNL-3.
DORIAN Indexable Boring Bar: S20U-MTUNR-4 (MPN 73310155220). Key specifications — attr257292: S20U-MTUNR-4.
DORIAN
DORIAN Indexable Boring Bar: S20U-MTUNR-4 (MPN 73310155220). Key specifications — attr257292: S20U-MTUNR-4.
DORIAN
DORIAN
DORIAN Indexable Boring Bar: S20U-MTUNL-4 (MPN 73310155221). Key specifications — attr257292: S20U-MTUNL-4.
DORIAN
DORIAN
DORIAN Indexable Boring Bar: S20U-MVUNR-3 (MPN 73310155270). Key specifications — attr257292: S20U-MVUNR-3.
DORIAN
DORIAN
DORIAN Indexable Boring Bar: S20U-MVUNL-3 (MPN 73310155271). Key specifications — attr257292: S20U-MVUNL-3.
DORIAN
DORIAN
DORIAN Indexable Boring Bar: S20U-MDUNR-4 (MPN 73310155070). Key specifications — attr257292: S20U-MDUNR-4.

More from DORIAN

View all DORIAN parts
DORIAN Indexable Boring Bar: TPBN06-2 (MPN 73310155658). Key specifications — attr257292: TPBN06-2.
DORIAN
DORIAN Indexable Boring Bar: TPBN06-2 (MPN 73310155658). Key specifications — attr257292: TPBN06-2.
DORIAN
DORIAN
DORIAN Indexable Boring Bar: S12S-STFPR-3 (MPN 73310155648). Key specifications — attr257292: S12S-STFPR-3.
DORIAN
DORIAN
DORIAN Indexable Boring Bar: S16T-MTUNR-3 (MPN 73310155208). Key specifications — attr257292: S16T-MTUNR-3.
DORIAN
DORIAN
DORIAN Indexable Boring Bar: E08K-SCLCR-3 (MPN 73310159615). Key specifications — attr257292: E08K-SCLCR-3.
DORIAN Indexable Boring Bar: TPBN20-4 (MPN 73310155670). Key specifications — attr257292: TPBN20-4.
DORIAN
DORIAN Indexable Boring Bar: TPBN20-4 (MPN 73310155670). Key specifications — attr257292: TPBN20-4.
DORIAN
DORIAN
DORIAN Indexable Boring Bar: S06M-SCLCL-2 (MPN 73310155471). Key specifications — attr257292: S06M-SCLCL-2.
DORIAN
DORIAN
DORIAN Indexable Boring Bar: S32V-MCLNR-6 (MPN 73310155042). Key specifications — attr257292: S32V-MCLNR-6.
DORIAN Indexable Boring Bar: TPBN08-2 (MPN 73310155660). Key specifications — attr257292: TPBN08-2.
DORIAN
DORIAN Indexable Boring Bar: TPBN08-2 (MPN 73310155660). Key specifications — attr257292: TPBN08-2.