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

SUMITOMO Square Turning Insert: SPMN634 - Square (S) Indexable Turning Inserts
SUMITOMOSquare (S) Indexable Turning Inserts

SUMITOMO Square Turning Insert: SPMN634

The SUMITOMO Square Turning Insert, model SPMN634 (MPN SPMN634-AC8025P) and also referenced as SPMN190416, is a square (S) indexable turning insert. It is designed for metal-cutting turning operations, with the…

SKU 3G-OTH-229368

Also listed as: SPMN634AC8025P · SPMN634 AC8025P

Brand
SUMITOMO
Item
Square Turning Insert: SPMN634
Category
Square (S) Indexable Turning Inserts
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SUMITOMO
Manufacturer Part Number
SPMN634-AC8025P

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

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

Product Description

The SUMITOMO Square Turning Insert, model SPMN634 (MPN SPMN634-AC8025P) and also referenced as SPMN190416, is a square (S) indexable turning insert. It is designed for metal-cutting turning operations, with the SPMN634 designation indicating its specific geometry and grade.

Frequently Asked Questions

What is the SUMITOMO SPMN634 square turning insert used for?

The SUMITOMO SPMN634 square turning insert is used for metal-cutting turning operations on lathes. Its square (S) geometry and AC8025P grade make it suitable for general-purpose machining of steels and cast irons, providing reliable edge strength and wear resistance in medium to heavy cutting conditions.

What are the specifications of the SUMITOMO SPMN634 turning insert?

The SUMITOMO SPMN634 turning insert is a square (S) indexable insert with designations SPMN634 and SPMN190416. The manufacturer part number is SPMN634-AC8025P. It features the AC8025P grade, designed for turning operations on ferrous materials. Always verify dimensions against your tool holder.

Where to buy SUMITOMO SPMN634 turning inserts worldwide?

You can source SUMITOMO SPMN634 turning inserts worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this SUMITOMO insert.

How to select the correct SUMITOMO SPMN634 insert for my lathe?

To select the correct SUMITOMO SPMN634 insert, confirm your tool holder accepts square inserts with the SPMN634 or SPMN190416 geometry. Match the AC8025P grade to your workpiece material (steel or cast iron) and cutting conditions. Consult the SUMITOMO catalog for recommended speeds and feeds.

Used in

Common applications for SUMITOMO
Automotive engine block machining — Sumitomo SNMG square turning inserts for facing and boring cast iron
Aerospace component turning — Sumitomo DNMG diamond inserts with UP chipbreaker for finishing titanium alloys
Oil and gas valve production — Sumitomo TPMR triangle inserts with T1500Z grade for threading stainless steel
General engineering shaft turning — Sumitomo CNMG diamond inserts with LU chipbreaker for medium interrupted cuts
Mold and die finishing — Sumitomo VNMG diamond inserts with UZ chipbreaker for hardened steel profiling
Heavy equipment repair — Sumitomo TCMT triangle inserts with AC810P grade for turning wear-resistant steels

SUMITOMO Products

3G Electric supplies SUMITOMO square (s) indexable turning inserts. 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
SUMITOMO Square Turning Insert: SPMN321, SPMN090304 (MPN SPMN321-AC420K)
SUMITOMO
SUMITOMO Square Turning Insert: SPMN321, SPMN090304 (MPN SPMN321-AC420K)
SUMITOMO Square Turning Insert: SPMN321, SPMN090304 (MPN SPMN321-AC415K)
SUMITOMO
SUMITOMO Square Turning Insert: SPMN321, SPMN090304 (MPN SPMN321-AC415K)
SUMITOMO Square Turning Insert: SPMN423, SPMN120312 (MPN SPMN423-AC420K)
SUMITOMO
SUMITOMO Square Turning Insert: SPMN423, SPMN120312 (MPN SPMN423-AC420K)
SUMITOMO Square Turning Insert: SPMN421, SPMN120304 (MPN SPMN421-AC415K)
SUMITOMO
SUMITOMO Square Turning Insert: SPMN421, SPMN120304 (MPN SPMN421-AC415K)
SUMITOMO Square Turning Insert: SPMN421, SPMN120304 (MPN SPMN421-AC420K)
SUMITOMO
SUMITOMO Square Turning Insert: SPMN421, SPMN120304 (MPN SPMN421-AC420K)
SUMITOMO Square Turning Insert: SPMN422, SPMN120308 (MPN SPMN422-AC8025P)
SUMITOMO
SUMITOMO Square Turning Insert: SPMN422, SPMN120308 (MPN SPMN422-AC8025P)

More from SUMITOMO

View all SUMITOMO parts
Square (S) indexable turning insert for external and internal turning, facing, and profiling of metals. Available in SCMT431ESU and SCMT120404N-SU geometries for different cutting conditions
SUMITOMO
Square (S) indexable turning insert for external and internal turning, facing, and profiling of metals. Available in SCMT431ESU and SCMT120404N-SU geometries for different cutting conditions
Square (S) indexable turning insert for general turning, facing, and profiling operations on metal workpieces. Suitable for use in machining applications requiring precision and repeatability
SUMITOMO
Square (S) indexable turning insert for general turning, facing, and profiling operations on metal workpieces. Suitable for use in machining applications requiring precision and repeatability
Square indexable turning insert with four cutting edges for general turning and facing operations. Suitable for roughing and semi-finishing on metal workpieces. Available in SNMM644EHG and SNMM190616N-HG variants
SUMITOMO
Square indexable turning insert with four cutting edges for general turning and facing operations. Suitable for roughing and semi-finishing on metal workpieces. Available in SNMM644EHG and SNMM190616N-HG variants
Square (S) indexable turning insert for external and internal turning, facing, and profiling operations. Suitable for machining steel, stainless steel, and cast iron on lathes. Also referenced as SPMN090308
SUMITOMO
Square (S) indexable turning insert for external and internal turning, facing, and profiling operations. Suitable for machining steel, stainless steel, and cast iron on lathes. Also referenced as SPMN090308
Square (S) indexable turning insert for general-purpose turning, facing, and profiling operations on metal workpieces. Suitable for medium-duty cutting applications with appropriate tool holders
SUMITOMO
Square (S) indexable turning insert for general-purpose turning, facing, and profiling operations on metal workpieces. Suitable for medium-duty cutting applications with appropriate tool holders
Square (S) indexable turning insert for general turning, facing, and profiling operations on metal workpieces. Suitable for a range of machining applications requiring consistent cutting performance
SUMITOMO
Square (S) indexable turning insert for general turning, facing, and profiling operations on metal workpieces. Suitable for a range of machining applications requiring consistent cutting performance
Square (S) indexable turning insert for general turning, facing, and profiling operations on metal workpieces. Suitable for a range of machining applications requiring consistent cutting performance and repeatable edge geometry
SUMITOMO
Square (S) indexable turning insert for general turning, facing, and profiling operations on metal workpieces. Suitable for a range of machining applications requiring consistent cutting performance and repeatable edge geometry
Square (S) indexable turning insert for general turning, facing, and profiling operations. Manufactured by SUMITOMO with part number SNMG643EUX-AC810P, also referenced as SNMG190612N-UX. The square shape allows multi-edge use, and the AC810P grade material provides cutting performance in metalworking applications
SUMITOMO
Square (S) indexable turning insert for general turning, facing, and profiling operations. Manufactured by SUMITOMO with part number SNMG643EUX-AC810P, also referenced as SNMG190612N-UX. The square shape allows multi-edge use, and the AC810P grade material provides cutting performance in metalworking applications