SCI 21-22 General Catalog

Chipbreaker and Grade Selection Guide for Turning Steel Steel

Grades

● Fine Cutting to Finishing (Cermet)

● Finishing to Roughing (Coated Carbide)

1400

High-speed Cutting AC8015P

1050

General-purpose Cutting AC8025P

700

Continuous/Light Cutting AC6030M

Interrupted to Heavy Interrupted Cutting AC8035P

A

350

For Small Lathes AC1030U

0

Finishing

Roughing

Partially Interrupted

Interrupted

Continuous

Main Chipbreakers

Negative Type

Positive Type

EMU Type

EMU Type

ESU Type

.240

.120

EME Type

EME Type EMU Type

EGU Type

ESU Type

EGE Type (Emphasis on crater wear resistance)

EMU Type

EGU Type

.160

.080

ELB Type

EGU Type (Sharper Edge)

EGE Type EGU Type

ELB Type

ESE Type ESU Type

ELU Type

.080

.040

ELU Type

ESU Type

EFB Type

EFE Type

EFB Type

ESE Type

0

.024

.008

.016

0

.008

.016

Feed Rate f (IPR)

Feed Rate f (IPR)

EFE Type

Sub-Chipbreakers

Chipbreakers for High-efficiency Machining

Negative Type

Strong Cutting Edge Chipbreakers

6

.120

EME Type

EMX Type

4

.080

EUX Type

EGE Type

ESE Type

2

.040

ESX Type

EFE Type

0 .008

Feed Rate f (IPR) .016

.024 .032

0

.008

.016

.024

Feed Rate f (IPR)

Chipbreakers for Shallow Depth of Cut

Wiper Insert

Chipbreakers for Heavy Cutting

.600

.170

.024

EHW Type

EHF Type

.400

.080

.160

EGUW Type

ELU Type

EFB Type

.200

.040

.080

EFL Type /

ESEW Type

EHU Type

EFA Type

EFE Type

ELUW Type

EHP / EHG Type

ENP Type

0

.008 .016 .024

0

.012 .024 .036

.060

0 .015 .030 .045

Feed Rate f (IPR)

Feed Rate f (IPR)

Feed Rate f (IPR)

A10

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