Sumitomo General Catalog 2025-2026

Spidermill Series

Cast Iron

High Productivity Cast Iron Milling Cutter with 8 cutting edges

■ General Features

• Double negative milling cutter with positive cutting insert geometry • High productivity shell mill for gray cast iron and ductile iron face milling • Eight (8) cutting edges per insert • Available in the grades: ACK100 and ACK200 • Unique positive chipbreaker insert provides less cutting force, more productivity and longer tool life

H

Fig. 1

Fig. 2

KWW DCB DCSFMS

KWW DCB DCSFMS

LF

LF

D1 DCX D2

D1

DCX

Body (Standard Type) 

Dimensions (inch)

Insert Screw Wrench

Diameter

Boss Bore Dia. Keyway Width Bolt

Bolt Mounting Depth Height

Number of Teeth

Fig

Cat. No.

DC DCSFMS DCB KWW D1 D2 CBDP LF

SDP42000R ● SDP42500R ● SDP43000R ● SDP53000R ● SDP54000R ● SDP55000R ● SDP56000R ●

2.000 1.500 .750

.312 .609 .406 1.020 1.750 4

1

BFTX0412N TRD15

2.500 1.750 1.000 .375 .797 .531 1.020 1.750 5 1 3.000 2.250 1.000 .375 .797 .531 1.020 1.750 6 1 3.000 2.250 1.000 .385 .797 .531 1.020 1.750 5 1 4.000 2.756 1.250 .515 1.030 .656 1.090 2.000 7 1 5.000 3.750 1.500 .635 2.000 N/A 1.060 2.500 8 2 6.000 4.380 1.500 .635 2.000 N/A 1.060 2.500 10 2

BFTX0513N TTX20

Inserts are sold separately. Torque specifications for BFTX0513N is 45-49 in/lbs. Insert 

Dimensions (Inch)

Grade Inscribed Circle

Thickness Radius

R

Cat. No.

I.C.

T

R

I.C.

● ● ● ●

SNMX120412DP SNEX156612DP

.500 .1875 .031 .625 .2660 .047

T

Please refer to Section N: Technical Guidance for Recommended Cutting Conditions

H261

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