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SM3 90° TPKT Milling System

True 90° system which excels in both shoulder and slot milling applications

3 corner positive insert with wide wiper design reduces cutting load and improves surface finish.

★★★★★

Diameter
Range (mm)

Insert
Sizes (mm)

Metal Removal
Rates

Material Versatility

Surface
Finish

High Accuracy Machining

Square Shoulder Milling

Chip
Control

20-200 11, 16 ★★★★★ ★★★★☆ ★★★★★ ★★★★★ ★★★★★ ★★★★★

Browse the Range

SM3 (TPKT)
90° End Mill

Diameters 20-40mm

Double core geometry for slotting and profiling, long tool life and best all-round performance

SM3 (TPKT)
90° Face Mill

Diameters 40-200mm

Best for profiling offering high feed rates and tool stability

Advantages

True 90° Milling

Unique 3 cornered insert with special geometry for true perpendicular

High Rigidity

Larger core size of the holder improves overall rigidity

Smooth Cutting

High helix edge ensures smooth cutting with low cutting forces

Optimal Chip Flow

The high positive rake angle geometry minimises burrs and ensures excellent chip flow

Features

Curved Cutting Edge

Unique cutting edge designed to minimise mismatching in step machining

Wiper Inserts

Wide wiper edge for excellent surface finish

Multi-Nano Layer Coating

Special insert coating strengthens chipping and wear resistance

3 Cutting Edges

A lower cost per edge compared to traditional 2 cutting edge 90° systems

SM3 Inserts

Insert Designation: TPKT

The revolutionary SM3 90° milling system from YG-1 features 3 cutting edge TPKT inserts for true perpendicular milling. The high helix ensures smooth cutting combined with low cutting resistance.

Chip Breaker Guide

Chipbreaker Cutting Edge Application Description
GN General First choice for general machining applications
ST Stainless Steel / HRSA's Sharp geometry for stainless steel & HRSA

Grade Guide

Grade Chipbreaker Materials Features & Benefits
YG012 GN
Hardened steel 35-55 HRC
A newly developed substrate with a good balance between wear resistance and toughness
YG712 GN
Steel <40 HRC
Dedicated steel grade with advanced multi layer TiALN structure for improved wear resisitance
YG612 GN
ST
Steel <40 HRC
Stainless Steel
HRSA's
Cast Iron
Improved universal grade with multi-nano PVD coating offering improved performance and longer tool life in general milling application
YG5020 GN
Cast Iron
CVD milling grade dedicated for cast iron milling, excellent wear resistance and improved toughness protects the cutting edge from chipping
YG613 ST
Stainless Steel
1st choice grade for stainless steel milling, tough substrate provides excellent cutting performance and stable tool life

Application

Material Suitability

Material Excellent Good
P
Steel
H
Hardened Steel
M
Stainless Steel
S
HRSA's
K
Cast Iron
N
Aluminium & Non-Ferrous

Possible Machining Methods

Face Milling

Trochoidal Milling

Side Cutting

Slotting

Circular Interpolation

Downloads

Product PDF

Cutting Data