Sumitomo General Catalog 2025-2026

Sumi Dual Mill DFC Series

■ General Features The high-ef•ciency general-purpose Sumi Dual Mill DFC has a unique insert shape with both excellent sharpness and cutting edge strength, enabling it to be used for a wider range of applications from high-ef•ciency machining through to •nishing. Further expansion of the shoulder milling GS chipbreaker, suitable for a wide range of applications. Now available in ACU2500.

H

■ Features

Wear

Restraining face

DFC

Conventional Tool

Unique insert shape delivers sharp cutting performance and cutting edge strength

Flank wear of inserts for DFC does not reach the restraining face and thus mounting accuracy does not suffer.

The 90° cutting edge angle is suitable for both face milling and shoulder milling

GS Chipbreaker for Shoulder Milling

· Excellent chip control · Suppresses machined surface deterioration due to chip re-cutting

Part Material: 1050, Tool: ø4.000”

Cutting Conditions: v c = 656 SFM, f z = 0.008 IPT,

a e = 1.97”, a p = 0.12” x 6 passes, Dry

Chip generation image and machined surface comparison

GS Chipbreaker

Conventional Tool

a

b

Chip flow direction control (a > b) → chip re-cutting suppressed

H114

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