Click for larger image and other views Image is representative of the product family.

How can we improve our images or Product Specifications?

YG-1 E5023 Carbide Square Nose End Mill, Double End, Uncoated (Bright) Finish, 30 Deg Helix, 4 Flutes, 1.5" Overall Length, 0.109375" Cutting Diameter, 0.125" Shank Diameter

Be the first to review this item


Product Specifications
Body Style
Double End
Cutting Diameter
0.109375  inches
Cutting Length
0.1875  inches
Flute Length
0.1875  inches
Number of Items
Outside Diameter
7/64  inches
Overall Length
1.5  inches
Part Number
Shank Diameter
0.125  inches
Shank Width
1/8  inches
Size Name
7/64 inches
Tolerance Held
+0/-0.0012 inches
Specification for this product family (See all  products)
Cutting Direction
Right Hand
Specific Uses For Product
Finish Types
Uncoated (Bright)
End Cut Type
Center Cutting
Material Type
Cutting Angle
30  Degrees
Brand Name
Manufacturer Series Number
Compatible Material
Aluminum/Aluminum Alloys, Cast Iron, Plastics, Steel/Steel Alloys
Specification Met
Shank Type
Cut Type
General Purpose
Shank Material Type
Special Features
System of Measurement

This item is no longer available

This item ships for FREE with 2-Day Shipping on orders over $50. (Details)

Want it delivered on Tue, Apr 21? Order in-stock items in the next 2 days 13 hrs 43 mins and choose One-Day Shipping at checkout.

  • Share

This item has already been added to

Update Quantity Cancel

Select a List Create New List

You can add a description later

Key Features

  • Double-end square end mills create sharp, unrounded cuts and have cutting edges on both ends for longer tool life
  • Suitable for general-purpose machining on hardened and high-alloy steel, chromium-nickel steel, steel casting, malleable cast iron, brass, copper, aluminum with a high percentage of silicon, and abrasive plastic
  • Stub length increases the strength of the tool, making it less likely to break in the workpiece
  • Four flutes produce a better finish than fewer flutes
  • Carbide can run at higher speeds than high-speed or cobalt steel, resisting wear and high cutting temperatures

Package Details

Shipping Weight: 0.05 pounds
Package Size: 2.4 x 0.5 x 0.4 inches

Product Description

The YG-1 E5023 uncoated carbide double-end stub-length square nose end mill has four flutes, a center-cutting design, and a 30-degree helix angle for general-purpose machining on hardened and high-alloy steel, chromium-nickel steel, steel casting, malleable cast iron, brass, copper, aluminum with a high percentage of silicon, and abrasive plastic. The double-end design has cutting edges on both ends, allowing a new cutting surface to be substituted when the first shows wear, which doubles the tool’s life compared to single-end square end mills. The stub length increases tool strength and makes it less likely to break in the material being machined. It is best used when depth of cut is shallow. Four flutes produce a better finish than fewer flutes. The tool’s square end creates sharp, unrounded cuts. 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. 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.

Carbide is harder than high-speed or cobalt steel, making it more wear resistant at high speeds and providing longer tool life. With no coating or surface treatment, this uncoated tool can be used on a broad range of materials. Cutting diameter tolerance is + 0.0000 to - 0.0012" for end mills with a different shank and cutting diameter and + 0.0000 to - 0.0020" for end mills with the same shank and cutting diameter. The round shank accommodates a range of tool holders.

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.

YG-1 manufactures drills, taps, end mills, and rotary tooling. The company, founded in 1981, is headquartered in South Korea and has a U.S. office in Vernon Hills, IL.

How can we improve our Product Description?

Customer Reviews

There are no customer reviews yet.

Be the first to review this item

Go to the HomePage

Order by Phone
M-F 8am-10pm ET, Sat-Sun 8am-5pm ET 800-220-4242

My Account| Returns| Help

Website Feedback| Contact Us| Sell on AmazonSupply| Become an Affiliate

Privacy Notice| Conditions of Use

Follow Us 

© 2015, Inc. and its affiliates.