Sumitomo General Catalog 2025-2026

Grooving Toolholders & Boring Bars SumiNotch - Inserts

E

3 O

W

T Gage Dia.

B

R

A

Left

Right

Dimensions (in)

Coated CBN

Coated CBN

SG

SG

F

Gage Dia.

W ±.001

R

E ±.001

T A B

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● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

SG-2031L SG-2041L SG-2047L SG-2058L SG-2062L SG-2094L SG-2125L SG-3047L SG-3062L SG-3072L SG-3088L SG-3094L SG-3097L SG-3105L SG-3110L SG-3122L SG-3125L SG-3142L SG-3156L SG-3178L SG-3185L SG-3189L

SG-2031R SG-2041R SG-2047R SG-2058R SG-2062R SG-2094R SG-2125R SG-3047R SG-3062R SG-3072R SG-3088R SG-3094R SG-3097R SG-3105R SG-3110R SG-3122R SG-3125R SG-3142R SG-3156R SG-3178R SG-3185R SG-3189R

.031 .002/.005 .050 .041 .002/.005 .050 .047 .002/.005 .050 .058 .005/.010 .050 .062 .005/.010 .110 .094 .005/.010 .110 .125 .005/.010 .110 .047 .005/.010 .120 .062 .005/.010 .120 .072 .005/.010 .120 .088 .005/.010 .180 .094 .005/.010 .180 .097 .005/.010 .180 .105 .005/.010 .180 .110 .005/.010 .180 .122 .005/.010 .180 .125 .005/.010 .180 .142 .005/.010 .180 .156 .005/.010 .180 .178 .005/.010 .180 .185 .020/.025 .180 .189 .020/.025 .180

.150 .219 .2700 .1875

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.195 .344 .4050 .3750

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Left

Right

Dimensions (in)

Coated

Coated

SG-CB

SG-CB

Gage Dia.

W ±.001

R

E ±.001

T A B

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● ● ● ● ● ● ● ● ● ● ● ● ●

SG-2047L-CB SG-2062L-CB SG-2078L-CB SG-2094L-CB SG-2125L-CB SG-3047L-CB SG-3062L-CB SG-3072L-CB SG-3078L-CB SG-3088L-CB SG-3094L-CB SG-3125L-CB SG-3189L-CB

SG-2047R-CB SG-2062R-CB SG-2078R-CB SG-2094R-CB SG-2125R-CB SG-3047R-CB SG-3062R-CB SG-3072R-CB SG-3078R-CB SG-3088R-CB SG-3094R-CB SG-3125R-CB SG-3189R-CB

.047 .002/.005 .050 .062 .005/.010 .110 .078 .005/.010 .110 .094 .005/.010 .110 .125 .005/.010 .110 .047 .005/.010 .075 .062 .005/.010 .120 .072 .005/.010 .120 .078 .005/.010 .120 .088 .005/.010 .180 .094 .005/.010 .180 .125 .005/.010 .180 .189 .020/.025 .180

.150 .219 .2700 .1875

.195 .344 .4050 .3750

• = USA Stocked Item

Recommended Cutting Conditions

Cutting Conditions below reflect EH520V grade

Speed (SFM)

Feed Rate

Material

(in/rev)

free-machining carbon alloys plain carbon steels alloy steels 190-330HB alloy steels 330-450HB martensitic/ferritic stainless steel austenitic stainless steel gray cast iron 190-330HB gray cast iron 330-450HB

450-750 400-700 400-700 350-600 250-650 175-700 400-700 350-600 250-650 60-250 30-175 90-250 600-2500 300-900 350-1200

Steels

.004 - .012

.004 - .009

Stainless Steels

Cast Iron

.004 - .015

alloy/ductile irons

high temp alloys 200-260HB

High Temperature Alloys high temp alloys 260-450HB

.003 - .008

titanium alloys Ti 6AI-4V free-machining aluminum alloys

Non-Ferrous Materials

copper/zinc/brass non-metallics

.004 - .012

F55

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