TURNING/BORING SYSTEMS > Inserts > Chipbreakers
Negative Chipbreakers (PDF)
Positive Chipbreakers (PDF)
Sumitomo stocks a wide variety of insert chipbreakers to handle virtually every machining and material application. Uncoated carbide, coated carbide, and cermet indexable inserts, feature the most advanced technology in chipbreaker development today.
Sumitomo offers its original chipbreaker designs like the popular EFA, ESU, and ESX for your finishing and light cutting operations.
When encountering conditions that require medium cutting applications, look to the versatile EUX and EGU chipbreakers. These tools can help you decrease machine time and reduce cutting forces.
If an excellent surface finish is a requirement, look to the ELUW (finishing) or the EGUW (general purpose) wiper chipbreakers. Double your feed rate for double the parts at the same surface finish, or keep the same feed rate for an excellent surface finish.
For heavy duty jobs, enlist the talents of the EMU and EMX chipbreakers. They combine strong fracture resistant cutting edges with superior top rake designs that control chips when machining the most difficult applications.
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EFA • Ideal for fine finishing of steels and stainless steels • Depth of Cut capability ranges from 0.004"- 0.030" • Feed rate capability range from 0.002- 0.010 IPR • Stocked in the cermet grade T1200A for fine finishing • Available in many finishing geometries |
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ESU • Ideal for finishing and light cutting • Depth of Cut capability ranges from 0.008"- 0.100" • Feed rate capability range from 0.002- 0.020 IPR • Stocked in coated carbide, uncoated carbide, and cermet insert grades • Ideal for machining steel |
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ESX • Ideal for finishing and light cutting • Depth of Cut capability ranges from 0.020"- 0.110" • Feed rate capability range from 0.004- 0.020 IPR • Stocked in coated carbide and cermet insert grades • Ideal for machining steel |
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EUX • Ideal for medium and general purpose cutting • Depth of Cut capability ranges from 0.020"- 0.200" • Feed rate capability range from 0.006- 0.024 IPR • Ideal for machining steel |
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EGU |  |
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• Ideal for general purpose to rough cutting • Depth of Cut capability ranges from 0.040"- 0.180" • Feed rate capability range from 0.004- 0.020 IPR • Ideal for machining steel and stainless steels |
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EMU • Light and heavy roughing • Depth of Cut capability ranges from 0.080"- 0.250" • Feed rate capability range from 0.010- 0.030 IPR • Ideal for machining both steels and cast irons |
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EMX • Heavy roughing of steels • Depth of Cut capability ranges from 0.080"- 0.250" • Feed rate capability range from 0.010- 0.030 IPR • Available in roughing grades AC2000 and AC3000 |
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