SCI 21-22 General Catalog

Turning Square Negative Inserts

Indexable Insert

RE

Information in "Shape" column

Square Neg. With Hole

IC

SN

EFL

Name of Chipbreaker

.12

Application Range

.08

Recommended Part Material

.04

Chipbreaker Rake Angle

0

.008 .016 .024

10 °

Feed Rate (f) (inch/rev)

L

S

90°

: Interrupted Cutting 1st Recommended : Interrupted Cutting 2nd Recommended

: General Cutting 1st Recommended : General Cutting 2nd Recommended

: Continuous Cutting 1st Recommended : Continuous Cutting 2nd Recommended

P Steel M Stainless Steel K Cast Iron N Non-Ferrous Metal S Exotic Alloy H Hardened Steel

SN ¢¢ 64 ˜

Cutting Edge Length L .7500 Thickness S .2500 Inscribed Circle IC .7500 Hole Dia. D1 .3126

Dimensions (inch)

B

Coated Cermet

Coated Carbide

Carbide

C14

E20

Applicable External Holders

Applicable Internal Holders

Nose Radius

Application Range

Sumitomo Cat. No.

ISO Cat. No.

Shape

RE

Q Q Q

QQQQ Q QQQQ Q QQQQ Q

.0469 « DD « DD .0625 «« D « DD .0938 « D «« D «

SNMM643EHG SNMM190612N-HG SNMM644EHG SNMM190616N-HG SNMM646EHG SNMM190624N-HG

EHG

.40 ( a p )

.20

( f )

0

.020

.040

0 °

Q Q

QQQQ Q QQQQ Q

« D

« D

SNMM643EHP SNMM190612N-HP SNMM644EHP SNMM190616N-HP

.0469

EHP

( a p )

.40

«« ««

.0625

.20

( f )

0

C

.020

.040

0 °

Q Q

QQQQ Q QQQQ Q

«« «« «« ««

SNMM644EHF SNMM190616N-HF SNMM646EHF SNMM190624N-HF

.0625

EHF

( a p )

.60

.0938

.40

.20

D

( f )

0

.020 .040 .060

-15°

R

S

T

V

W

B48

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