Four flutes produce a better finish than fewer flutes
Extra-long length end mills have longer cutting edges and can make deeper cuts than long-length end mills
Titanium aluminum nitride (TiAlN) coating lubricates the end mill for high-temperature stability and abrasion resistance at high cutting speeds, offering better heat resistance than TiN and TiCN coatings
Carbide can run at higher speeds than high-speed or cobalt steel, resisting wear and high cutting temperatures
Square nose end mills (also called square end) create sharp, unrounded cuts

Technical Details

Product Details

Package Dimensions
Width : 1.2 inch
Height : 1.1 inch
Length : 5.9 inch

Shipping Weight: 1.8 pounds (View shipping rates and policies)

ASIN : B009TYFUKS

Product Description

The Precision Twist E6304V TiAlN-coated carbide square end mill has four flutes, a 30-degree helix angle, and an extra-long-length design for applications that require a longer reach than long-length end mills. Extra-long length end mills have longer cutting edges than long-length end mills for deep slotting and applications with a high depth of cut. The four flutes produce a better finish than fewer flutes. The TiAlN coating resists heat better than TiN and TiCN coatings, increasing tool life and performance. It also offers increased hardness compared to TiN and may reduce the need for lubricants based on the application. (TiAlN is suitable for a range of materials, but uncoated end mills are recommended for machining aluminum.) The carbide substrate is harder than high-speed or cobalt steel, making it more wear resistant at high speeds and providing longer tool life.
The tool’s square end creates sharp, unrounded cuts. The 30-degree helix angle supports general-purpose applications. It balances lower angles’ strong cutting edge for difficult-to-machine materials with higher angles’ increased cutting action. The center-cutting design has cutting teeth at the end of the tool, so it can be fed into the workpiece like a drill bit; it can also be used for slotting and ramping. The cutting diameter tolerance is +0.000” to -0.002”. This tool has a round shank.
End mills are designed to remove material and create multi-dimensional shapes and profiles. They have cutting edges along the outside diameter and flutes that remove chips from the cutting area and allow cooling fluids to enter. If heat is not reduced effectively, the tool’s cutting edges will dull and additional material buildup can occur. The number of flutes can range from two to eight. Two-flute designs offer the most efficient chip removal, but more flutes provide a smoother finish. The shank is the end of the tool held in place by a tool holder or machine. Center-cutting end mills can create three-dimensional shapes and profiles, and make plunge cuts similar to a drill bit. Non-center-cutting end mills are for applications such as peripheral milling and finishing, but cannot make plunge cuts.
Precision Dormer manufactures cutting tools under the following brands: Precision Twist, Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.