Sumitomo General Catalog 2025-2026

Grooving Tools GND - Application Examples

Sintered Component Tap Component Grooving

1015 Steel Automotive Component Grooving

· Tool life · Chip evacuation Holder: GNDLL2020K-220J Insert: GCMN2002-GF Seat Size: 2.0 Cutting Conditions

· Machining efficiency · Tool life Holder: GNDMR2525K-312J Insert: GCMN3004-GG Seat Size: 3.0

1.2 sec/pc

GND Competitor's Product GND Competitor's Product

Cutting Conditions v c = 500 (300) SFM f = .0039 (.0019) IPR a p = .374" Wet  Internal Coolant Supply 305 PSI *( ) competitors running parameters

v c = 300 SFM f = .0008 IPR a p = .079" Wet  Internal Coolant Supply 218 PSI · Coolant supply from near the cutting edge directly to the cutting point, achieves 1.7 times longer tool life · Internal coolant supply realizes stable chip evacuation even at low feed machining GND Competitor's Product 30 pcs. 50 pcs. Tool Life (pcs.) 4135 Steel Machine Component Cut-off · Machined surface · Tool life

3.6 sec/pc

Cutting Time (sec/pc)

1,000 pcs.

250 pcs.

Tool Life (pcs.)

F

· Double the feed rate of competitor tools, with no chatter · ‌1.5 times the cutting speed thanks to an internal coolant holder, achieving 4 times longer tool life

4804 Steel Free-cutting Steel Machine Component Cut-off · Tool life · Central burrs

Holder: GNDLR1212JX-212.5 Insert: GCMR20003-CF-10 Seat Size: 2.0 Cutting Conditions

Holder: GNDMR2020K-210 Insert: GCMR20003-CF-15 Seat Size: 2.0 Cutting Conditions n = 2,500min-1 f = .0016 IPR Wet

1,800 pcs.

GND

2,800 pcs.

GND

v c = 400 SFM f = .0019 IPR a p = .250", Wet

Competitor's Product

Competitor's Product

1,000 pcs.

2,500 pcs.

Tool Life (pcs.)

Tool Life (pcs.)

· Excellent cutting edge sharpness for 1.12 times longer tool life · Central burrs eliminated with handed insert

· Excellent chip control improves machined surface · Outstanding cutting edge sharpness for 1.8 times longer tool life

Pure Iron Automotive Component Cut-off

1045 Steel Equivalent Automotive Component Grooving / Traverse Cutting

· Machining efficiency · Tool life Holder: GNDMR616JX-216J (Special Type) Insert: GCMN2002-GF Seat Size: 2.0 Cutting Conditions v c = up to 475 SFM f = .0023 IPR a p = .197" Wet  Internal Coolant Supply (Normal Pressure)

· Machined surface · Tool life Holder: GNDMR2020K-418J Insert: GCMN4004-ML Seat Size: 4.0 Cutting Conditions

1,500 pcs.

GND

n = 2,500min-1 f = 0.0039 IPR a p = .019" to .079" Wet  Internal Coolant Supply (Normal Pressure)

10,000 pcs.

GND

500 pcs.

Competitor's Product

Competitor's Product

2,500 pcs.

Tool Life (pcs.)

Tool Life (pcs.)

· Effective cutting edge cooling via internal coolant supply, achieving 4 times longer tool life · Tool change reduced, enabling longer automatic operation · Improved productivity through change to high- speed conditions

· Effective cutting edge cooling via internal coolant supply, achieving 3 times longer tool life · Cutting edge sharpness maintained for significantly improved post- machining tearing as well

F42

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