Thin Wall Diamond Core Drill – Made in USA

High-precision thin wall diamond core drill engineered for accurate drilling in hard, dense, and brittle materials. Manufactured in the United States for consistent quality and performance.

Specifications

• Bond Type: Sintered (Metal Bond)

• Outside Diameter (OD): .330"

• Inside Diameter (ID): .255"

• Diamond Wall Thickness: .040"

• Diamond Depth: .25"

• Drilling Depth: 3.75"

• Total Length: 5.35"

• Thread: 5/8"-11 Female

• Origin: Made in USA

Key Features

• Sintered metal bond construction for long tool life and high diamond retention

• Thin wall design for reduced cutting pressure and improved hole accuracy

• Extended .25" diamond depth for longer usable life

• Deep 3.75" drilling capacity for thicker materials

• Standard 5/8"-11 female thread for compatibility with common drilling equipment

The thin wall configuration minimizes material stress while maintaining structural strength. This design improves hole quality, reduces chipping in brittle materials, and enhances dimensional control.

Recommended Applications

Suitable for drilling:

• Glass and optical glass

• Quartz and fused silica

• Advanced ceramics

• Alumina and zirconia

• Silicon carbide and silicon nitride

• Ferrites

• Composites

• Stone and engineered materials

For best performance, use with adequate coolant and controlled feed rates to maximize tool life and maintain clean hole quality.

About Us

UKAM Industrial Superhard Tools is a U.S.-based manufacturer and supplier of precision diamond and CBN tooling serving industrial, laboratory, and manufacturing markets since 1990. We specialize in designing and producing both standard and custom superabrasive tools for demanding applications involving hard, brittle, and advanced engineered materials.

Many of our eBay listings consist of custom-made, low-quantity, overstock, or discontinued items and may be available in limited quantities. If you do not see the exact size or specification you need, we can often manufacture it to your requirements.

Why Buy From Us

• U.S. manufacturer since 1990
• Most products made in the USA
• Custom manufacturing available
• No minimum order on many custom tools
• Application engineering support with decades of experience
• Consistent quality and performance
• Best cost of ownership and return on investment

Products & Capabilities

• Diamond and CBN cutting wheels and blades
• Diamond grinding wheels (resin bond, metal bond, hybrid bond, vitrified)
• Thin wall and segmented diamond core drills
• Solid diamond micro drills and pin drills
• Diamond routers, points, and profiling tools
• Custom-engineered diamond tooling solutions

If you have questions about selecting the right tool, need a custom size, or want to confirm compatibility with your application, please contact us. We are happy to help.

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