Square End Mill

Square end mills are widely used carbide tools for CNC machining, designed for slotting, side milling, shoulder milling, and contouring. With a flat cutting edge, they deliver sharp corners and precise dimensional accuracy across a wide range of materials, including steel, stainless steel, cast iron, and non-ferrous metals.

Key technical features include optimized flute count (2F, 3F, 4F, and multi-flute designs), variable helix angles for chatter suppression, and high-performance PVD coatings to enhance wear resistance and thermal stability.

Our carbide square end mills offer excellent rigidity, stable chip evacuation, and extended tool life for roughing and finishing. Popular models include general-purpose, high-efficiency machining (HEM), and variable pitch end mills, with options for customized geometries, coatings, and dimensions to suit specific machining needs.

Speed Tiger is a leading manufacturer of carbide square end mills. Please explore our products below.

Square,2 Flute,Long Flute End Mill

600PLUS_P-LET

Features

Taper Core Design: Maximized rigidity, and chip removals are greatly improved due to special geometric design and reinforced design in cutting edges against chipping at corners.
Durable ALTIBN Coating: This advanced coating, made of titanium aluminum boron nitride, offers exceptional stability at high temperatures and surpasses the heat resistance of AlTiN, TiN, or TiCN coatings.

Application

Excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC40~45), stainless steel, and cast iron.

Square,4 Flute,Long Flute End Mill

600PLUS_P-LET

Features

Taper Core Design: Maximized rigidity, and chip removals are greatly improved due to special geometric design and reinforced design in cutting edges against chipping at corners.
Durable ALTIBN Coating: This advanced coating, made of titanium aluminum boron nitride, offers exceptional stability at high temperatures and surpasses the heat resistance of AlTiN, TiN, or TiCN coatings.

Application

Excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC40~45), stainless steel, and cast iron.

Square,2 Flute,Long Neck End Mill

600PLUS_P-LNT

Features

Taper Core Design: Maximized rigidity, and chip removals are greatly improved due to special geometric design and reinforced design in cutting edges against chipping at corners.
Durable ALTIBN Coating: This advanced coating, made of titanium aluminum boron nitride, offers exceptional stability at high temperatures and surpasses the heat resistance of AlTiN, TiN, or TiCN coatings.

Application

Excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC40~45), stainless steel, and cast iron.

Square,3 Flute,Fine Pitch & Roughing End Mill

600PLUS_P-NTA

Features

Taper Core Design: Maximized rigidity, and chip removals are greatly improved due to special geometric design and reinforced design in cutting edges against chipping at corners.
Durable ALTIBN Coating: This advanced coating, made of titanium aluminum boron nitride, offers exceptional stability at high temperatures and surpasses the heat resistance of AlTiN, TiN, or TiCN coatings.

Application

Excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC40~45), stainless steel, and cast iron.

Square,4 Flute,Fine Pitch & Roughing End Mill

600PLUS_P-NTA/INTA

Features

Taper Core Design: Maximized rigidity, and chip removals are greatly improved due to special geometric design and reinforced design in cutting edges against chipping at corners.
Durable ALTIBN Coating: This advanced coating, made of titanium aluminum boron nitride, offers exceptional stability at high temperatures and surpasses the heat resistance of AlTiN, TiN, or TiCN coatings.

Application

Excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC40~45), stainless steel, and cast iron.

Square,3 Flute,Roughing End Mill

600PLUS_P-XTA

Features

Taper Core Design: Maximized rigidity, and chip removals are greatly improved due to special geometric design and reinforced design in cutting edges against chipping at corners.
Durable ALTIBN Coating: This advanced coating, made of titanium aluminum boron nitride, offers exceptional stability at high temperatures and surpasses the heat resistance of AlTiN, TiN, or TiCN coatings.

Application

Excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC40~45), stainless steel, and cast iron.

Square,4 Flute,Roughing End Mill

600PLUS_P-XTA

Features

Taper Core Design: Maximized rigidity, and chip removals are greatly improved due to special geometric design and reinforced design in cutting edges against chipping at corners.
Durable ALTIBN Coating: This advanced coating, made of titanium aluminum boron nitride, offers exceptional stability at high temperatures and surpasses the heat resistance of AlTiN, TiN, or TiCN coatings.

Application

Excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC40~45), stainless steel, and cast iron.

Square,2 Flute,Taper End Mill

600PLUS_P-TTA/P-LTTA

Features

Taper Core Design: Maximized rigidity, and chip removals are greatly improved due to special geometric design and reinforced design in cutting edges against chipping at corners.
Durable ALTIBN Coating: This advanced coating, made of titanium aluminum boron nitride, offers exceptional stability at high temperatures and surpasses the heat resistance of AlTiN, TiN, or TiCN coatings.

Application

Excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC40~45), stainless steel, and cast iron.

Square,2 Flute,Inch Size End Mill

600PLUS_ISE

Features

HIGH-PERFORMANCE MATERIAL: This end mill is made from micrograin carbide, which gives it exceptional toughness, durability, and machinability. It performs brilliantly and is an excellent value for its price.
AlTiBN COATING - This coating, made of titanium aluminum boron nitride (AlTiBN), offers exceptional stability at high temperatures and surpasses the heat resistance of TiAlN, TiN, or TiCN coatings.

Application

Excel at working Carbon Steels (~HB225), Alloy Steels (HB225~325), Pre-hardened Steels (up to HRC45), Hardened Steels (HRC40~51), and Cast Iron.

Square,4 Flute,Inch Size End Mill

600PLUS_ISE

Features

HIGH-PERFORMANCE MATERIAL: This end mill is made from micrograin carbide, which gives it exceptional toughness, durability, and machinability. It performs brilliantly and is an excellent value for its price.
AlTiBN COATING - This coating, made of titanium aluminum boron nitride (AlTiBN), offers exceptional stability at high temperatures and surpasses the heat resistance of TiAlN, TiN, or TiCN coatings.

Application

Excel at working Carbon Steels (~HB225), Alloy Steels (HB225~325), Pre-hardened Steels (up to HRC45), Hardened Steels (HRC40~51), and Cast Iron.

Square,4 Flute,Long Shank Inch Size End Mill

600PLUS_ISLE

Features

HIGH-PERFORMANCE MATERIAL: This end mill is made from micrograin carbide, which gives it exceptional toughness, durability, and machinability. It performs brilliantly and is an excellent value for its price.
AlTiBN COATING - This coating, made of titanium aluminum boron nitride (AlTiBN), offers exceptional stability at high temperatures and surpasses the heat resistance of TiAlN, TiN, or TiCN coatings.

Application

Excel at working Carbon Steels (~HB225), Alloy Steels (HB225~325), Pre-hardened Steels (up to HRC45), Hardened Steels (HRC40~51), and Cast Iron.

Square,4 Flute,Long Flute Inch Size End Mill

600PLUS_ILET

Features

HIGH-PERFORMANCE MATERIAL: This end mill is made from micrograin carbide, which gives it exceptional toughness, durability, and machinability. It performs brilliantly and is an excellent value for its price.
AlTiBN COATING - This coating, made of titanium aluminum boron nitride (AlTiBN), offers exceptional stability at high temperatures and surpasses the heat resistance of TiAlN, TiN, or TiCN coatings.

Application

Excel at working Carbon Steels (~HB225), Alloy Steels (HB225~325), Pre-hardened Steels (up to HRC45), Hardened Steels (HRC40~51), and Cast Iron.

Square,2 Flute,Miniature Anti-vibration Design End Mill

400PLUS_P-UMIE

Features

Variable Geometry for Stability: Features unequal flute spacing and irregular helix angles to maximize vibration absorption. It eliminates chatter and burrs, ensuring stable, high-efficiency machining even on difficult materials.
Precision & Durability: A strengthened edge and specialized flutes optimize chip removal while preventing chipping. With a strict 0 to -0.02mm tolerance and premium coating, it delivers superior wear resistance and consistent accuracy.

Application

Excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC~55), Stainless Steel, Titanium Alloy, Nickel/Inconel Alloy.

Square,2 Flute,Anti-vibration Design End Mill

400PLUS_P-UET

Features

Variable Geometry for Stability: Features unequal flute spacing and irregular helix angles to maximize vibration absorption. It eliminates chatter and burrs, ensuring stable, high-efficiency machining even on difficult materials.
Precision & Durability: A strengthened edge and specialized flutes optimize chip removal while preventing chipping. With a strict 0 to -0.02mm tolerance and premium coating, it delivers superior wear resistance and consistent accuracy.

Application

Excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC~55), Stainless Steel, Titanium Alloy, Nickel/Inconel Alloy.

Square,4 Flute,Anti-vibration Design End Mill

400PLUS_P-UET

Features

Variable Geometry for Stability: Features unequal flute spacing and irregular helix angles to maximize vibration absorption. It eliminates chatter and burrs, ensuring stable, high-efficiency machining even on difficult materials.
Precision & Durability: A strengthened edge and specialized flutes optimize chip removal while preventing chipping. With a strict 0 to -0.02mm tolerance and premium coating, it delivers superior wear resistance and consistent accuracy.

Application

Excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC~55), Stainless Steel, Titanium Alloy, Nickel/Inconel Alloy.