Greenfield Industries

Greenfield Industries is a leading manufacturer of expendable cutting tools and related products. The company is a part of the Top-Eastern Group (TDC), the world’s largest manufacturer of twist drills.
Greenfield Industries combines a rich history of American manufacturing with global resources, offering a comprehensive portfolio of high-performance carbide drills under renowned brands such as Cleveland, Chicago-Latrobe, and Cle-Line.

This article summarizes the features and applications of Greenfield Industries’ carbide drills.

Recommended
Applications
for Greenfield Industries

Greenfield Industries' drills are engineered for a wide range of sectors, including aerospace, automotive, heavy machinery, and maintenance, repair, and operations (MRO). They are particularly well-suited for manufacturers who require reliable precision in deep-hole or hard-to-reach drilling applications.

By leveraging advanced geometries and premium substrate materials, Greenfield’s solid carbide and carbide-tipped drills deliver exceptional wear resistance and rigidity.
This ensures consistent hole quality and extended tool life, even when machining difficult-to-cut materials like high-temperature alloys and stainless steels.

Note: Performance may vary depending on the product and machining conditions, including spindle speed, feed rate, coolant, and machine rigidity.

Greenfield Industries Brand Portfolio

Greenfield Industries operates as a house of brands, each with a distinct heritage and specialization. Understanding these sub-brands helps users select the right tool for their specific industry requirements.

Cleveland

Established in 1876, Cleveland is the flagship brand known for premium high-speed steel and cobalt tools.
It is the go-to choice for heavy-duty industrial applications where tool life and consistent performance are critical. While famous for HSS, Cleveland also offers a robust line of carbide-tipped and solid carbide tools for high-production environments.

Chicago-Latrobe

Chicago-Latrobe is widely recognized as the standard for general-purpose industrial drills in the United States.
With a strong focus on the aerospace and heavy equipment sectors, this brand offers an extensive selection of drill styles, including the aircraft extension drills mentioned above. Its products are designed to deliver reliable precision in both handheld and machine operations.

Cle-Line

Cle-Line focuses on the Maintenance, Repair, and Operations (MRO) and construction markets.
These tools are engineered to be forgiving and versatile, making them ideal for portable drilling applications where machine rigidity cannot be guaranteed. They are often sold in comprehensive sets for mechanics and contractors.

How to Choose Carbide Drills
from Greenfield Industries

For Extended-Reach Drilling

Recommended Product: IN A/C Extension Drill

For drilling in confined spaces, deep cavities, or hard-to-reach areas, Greenfield Industries’ IN A/C Extension Drill is designed for applications that require extra reach beyond standard drill lengths.

The Aircraft (A/C) Extension Drill helps address access challenges in aerospace, maintenance, and assembly work. High-performance versions may feature specialized geometries that support rigidity and accuracy at extended lengths.

Many versions feature a 135° split point that helps reduce walking and supports more accurate starts. This makes the drill useful for airframe assembly and maintenance tasks where extended reach and hole straightness are both important.

Best Fit Applications

• Extended-reach drilling in confined spaces
• Deep-cavity drilling where standard drills cannot access the work area
• Airframe assembly and aerospace maintenance tasks
• Applications requiring reduced walking and improved hole straightness
• Operations where reach, rigidity, and accuracy must be balanced

Compatible Materials

• Carbon and alloy steels
• Stainless steels
• Aluminum and non-ferrous metals
• High-temperature alloys, depending on substrate

Available Lineup

• 6" OAL (152.40 mm)
  • Wire gauge sizes: #60 - #1
    • Dia: Ø0.0400" - 0.2280" (Ø1.02 mm - 5.79 mm)
  • Fractional sizes: 3/64" - 1/2"
    • Dia: Ø0.0469" - 0.5000" (Ø1.19 mm - 12.70 mm)
  • Letter sizes
    • E: Ø0.2500" (Ø6.35 mm)
    • F: Ø0.2570" (Ø6.53 mm)

For High-Precision Stub Drilling

Recommended Product: CARB STUB DRILL 118 DEG 4 FACET

For applications where rigidity, accuracy, and hole quality matter more than reach, Greenfield Industries’ Style 1767 Solid Carbide Stub Drill is the more suitable choice.

This solid carbide stub drill is designed for rigid, high-accuracy drilling in tough materials. Its short flute length and compact overall length help reduce tool deflection and support cleaner, more consistent holes.

The drill features a 118° 4-facet point grind that improves centering and helps reduce thrust during drilling. Its solid carbide construction can also support higher speeds and feeds when used in a sufficiently rigid machine setup.

Best Fit Applications

• High-precision drilling where tool rigidity is important
• Short-reach drilling that requires reduced deflection
• Applications requiring cleaner hole finish and improved centering
• Drilling tough materials such as hardened steels, cast iron, titanium, or nickel alloys
• Production environments where higher cutting speeds and feeds are required

Compatible Materials

• Steel and hardened steels
• Cast iron
• Titanium and nickel alloys
• Non-ferrous materials

Available Lineup

• 118° Solid Carbide Stub Length Drill
  • Wire gauge sizes: #60, #48, #44, #23, #14
    • Dia: Ø0.0400" - 0.1820" (Ø1.02 mm - 4.62 mm)
  • Fractional sizes: 1/16" - 1/2"
    • Dia: Ø0.0625" - 0.5000" (Ø1.59 mm - 12.70 mm)
  • Letter sizes
    • E: Ø0.2500" (Ø6.35 mm)
  • Overall Length (OAL): 1.5000" - 3.0000" (38.10 mm - 76.20 mm)
  • Length of Flute (LOF): 0.3750" - 1.2500" (9.52 mm - 31.75 mm)

For more detailed technical information and product comparisons, visit our special feature on carbide drills for stainless steel.
The page highlights three top manufacturers with proven strengths in stainless steel machining, including in-depth coverage of recommended tools for this demanding material.

Buying Guide to Greenfield Industries Tools

Greenfield Industries products are sold through a global network of authorized industrial distributors. This distributor-based model helps customers access local purchasing support, inventory, and product guidance.

To find a supplier, buyers can use the Distributor Locator on the official website. For specific tooling needs or technical questions, Greenfield Industries also provides customer service support to help direct buyers to the appropriate distributor or contact for their region.

Made-To-Order Cutting Tools from Greenfield Industries

For applications that go beyond standard catalog tools, Greenfield Industries offers Made-To-Order capabilities for custom or modified tooling requirements. These services help buyers match tool geometry, dimensions, and performance needs to specific machining applications or print requirements.

To request Made-To-Order tooling, customers can submit specifications through the Specials Quote Form. Greenfield Industries then reviews the request and provides a quotation based on the submitted requirements.

Quality & Certifications

As a supplier to critical industries such as aerospace and energy, Greenfield Industries maintains rigorous quality management systems.The company is ISO 9001:2015 certified, ensuring that every batch of tools meets strict international standards for consistency and performance.

For aerospace applications, their aircraft extension drills undergo specific quality checks to ensure they meet the tight tolerances required for airframe assembly. The use of premium substrates reduces the risk of tool failure in high-stress drilling scenarios.

After-Sales Support from Greenfield Industries

Greenfield Industries is committed to sustainability and cost-efficiency through its GreenTech recycling program.
The company buys back used solid carbide and high-speed steel tools, regardless of the original manufacturer, allowing users to recover value from their worn tools while supporting environmentally responsible manufacturing practices.

Additionally, Greenfield Industries provides comprehensive technical support and application engineering to help customers select the optimal drill for their specific machining needs.

Company Information

Address	2501 Davis Creek Road, Seneca, SC 29678, USA
Contact Number	+1 800-348-2885
Customer Service	USA: (800) 348-2885 / International: (864) 653-3904
Official Website	https://www.gfii.com/