SCI 21-22 General Catalog

Threading Tools SSTE Type / SSTI Type

■ Features l High-precision inserts with wiper edge for threading, supporting a wide range of applications from general industrial machinery to pipes and aerospace devices l Stable chip control through use of a 3D molded chipbreaker l Ground cutting edge flank for improved cutting edge sharpness, resulting in high quality threads

F

Ground flank periphery around cutting edge

■ Product Range

Pitch

Insert Cat. No. (Example)

External/ Internal

Applications

Type

TPI (Threads/Inch)

Pitch (mm)

48 36 32 28 27 24 20 19 18 16 14 13 12 11.5 11 10 8

16ER A60-CB

External Internal External Internal External Internal External Internal External Internal External Internal External Internal External Internal External Internal

48 to 8

0.5

3.0

60° General-purpose Thread

16IR A60-CB 16ER A55-CB 16IR A55-CB

48 to 8

0.5

3.0

48 to 8

55° General-purpose Thread

48 to 8

General Industrial Use

16ER 075ISO-CB 16IR 075ISO-CB 16ER 32UN-CB 16IR 32UN-CB 16ER 36W-CB 16IR 28W-CB 16ER 27NPT-CB 16IR 27NPT-CB 16ER 28BSPT-CB 16IR 28BSPT-CB 16ER 27NPTF-CB 16IR 27NPTF-CB 16ER 32UNJ-CB 16IR 32UNJ-CB

0.75 1.0 1.25 1.5 1.75 2.0

2.5

3.0

60° ISO Metric Thread

0.75 1.0 1.25 1.5 1.75 2.0

2.5

3.0

60° Unified Thread

55° Parallel Thread for Pipe/Whitworth

Pipe Coupling for Gas, Water and Water Faucets

60° American NPT

55° Taper Thread for Pipe BSPT

Steam, Gas and Water Supply Pipes

60° American NPTF

Aerospace Equipment

60° UNJ

48 36 32 28 27 24 20 19 18 16 14 13 12 11.5 11 10 8

For inch holders, the STH and STI holders will also fit these products

■ Application Examples

● Comparison of Cutting Force

● Machined Surface Comparison

Cleanly machined surface with fewer blemishes

Sharp cutting edge reduces resistance

300

280

260

240

220

At 1st pass

At 8th pass

0.1mm

200

SSTE Type Competitor's Product A

Competitor's Product B

Competitor's Product C

SSTE Type

Competitor's Product A

Part Material: Medium Carbon Steel (S45C), M30 × 1.5 Cutting Conditions: v

Part Material: Medium Carbon Steel (S45C), M30 × 1.5 Cutting Conditions: v

c =150m/min Wet 8 passes Thread infeed method: Radial infeed

c =150m/min Wet 8 passes Thread infeed method: Radial infeed

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