High Performance Carbide Router Bits and Endmills for CNC Machines

At Ekstrom Carlson, we manufacture high performance custom carbide router bits and endmills for CNC machines, designed to deliver precise, reliable results across wood, plastic, composite, and even non-ferrous metal materials. Our tools are built in the USA using premium solid carbide and high-speed steel, ensuring long tool life, smooth finishes, and consistent quality for both standard and demanding cutting applications.

Whether you’re cutting hardwood, machining aluminum, or routing composite panels, we offer a wide range of tool geometries — including upcut, downcut, O-flute, and ballnose designs — all optimized for CNC operations. Need something unique? We specialize in custom tool solutions tailored to your exact specifications.

High Performance Carbide Endmills for CNC Machining

Ekstrom Carlson manufactures a full line of solid carbide endmills for CNC machining, engineered for superior performance in milling aluminum, steel, stainless steel, plastics, and composites. Our endmills feature advanced geometries and coatings like AlTiN to ensure maximum heat resistance, tool life, and surface finish — even in high-speed applications.

Whether you need standard lengths or extra-long reach cutters, we stock a wide range of square-end, ball-nose, roughing, and finishing endmills — all precision-ground in the USA. Need something specific? Our in-house team also designs and grinds custom endmills to match your exact cutting requirements.

Below is a list of a few of the different endmills we manufacture:

  • Roughing Endmills
  • Finishing Endmills
  • Ball nose Endmills
  • Tapered Endmills
  • Form Endmills

And many more.

Do you need a custom endmill? Feel free to reach out to the team at Ekstrom Carlson and we will ensure that you are taken care of.

Ekstrom Carlson – Metalworking Endmills

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We manufacture the EkstroMill – a high performance variable helix endmill with AlTiN coating as standard.  Stock at our facility mainly includes standard English dimension endmills in the most common sizes. Create your own tool. We can make additional tool sizes and geometries depending on what you need for your custom endmill. Our cutting tool expertise allows for Ekstrom Carlson to make a custom solid carbide endmill that will last longer for almost any material.

Here at Ekstrom Carlson we also manufacture drills, reamers, and custom tools upon request.  Additional metalworking tool options in our store include include:

  • 4 flute is standard, contact us for additional flute options
  • Square, ballnose, corner radius are available
  • General purpose endmills are also offered
  • EkstrAlum High helix for aluminum cutting
  • Roughers are offered as well
  • Coated and uncoated

Router Bits That we Offer

Ekstrom Carlson offers a wide selection of Carbide router bits for CNC machines, designed to cut wood, plastic, and foam with precision. Our router bits are manufactured using high-quality solid carbide with geometry options that impact finish, durability, and cutting efficiency.

From standard profiles to custom-designed tools, we ensure that every carbide router bit we produce delivers exceptional performance and long tool life — all proudly made in the USA to meet your most demanding machining needs.

Below are a few different kinds of router bits we offer:

  • O-flute Router bits
  • Chamfer tools
  • Slot Cutting tools
  • Roundover bits
  • Edge forming bits
  • Bearing-guided bits

And many more.

If you have any questions about our custom carbide router bits or special requests with competitive turnaround times, contact us here.

Ekstrom Carlson Router Bits

(Click here to shop webstore)

Ekstrom Carlson manufactures our own line of solid carbide router bits as stock for our catalog offering. Stock at our facility mainly includes standard English dimension router bits and cutting tools of various design. Our stock woodworking and plastic cutting tools are offered in various styles with different features including:

  • Solid carbide or solid high speed steel depending on your custom tool needs
  • Sizes starting at 1/32″ diameter
  • Extra long tools
  • Roughers, finishers, compression, ballnose, square end
  • O-flutes for plastics and aluminum
  • Upcut, downcut, and straight flute
  • Custom or stock cutting tools for hardwoods, softwoods, hard plastics, soft plastics, aluminum, foams

To Check out Our Stock Carbide Endmills and Carbide Router Bits See Our Catalogs Below:

Why Choose Ekstrom Carlson For my Custom Endmills and Carbide Router Bits?

Decades of CNC Tooling Expertise

Since the early 2000s Ekstrom Carlson has been providing reliable, high quality, and long lasting Carbide and High Speed cutting tools for CNC machines to a vast amount of manufacturers and across many different industries.

USA-Made Quality

Our Carbide router bits and endmills are engineered and manufactured in the USA, ensuring consistent performance, superior materials, and tighter tolerances.

Custom Tooling Capabilities

Need a specific tool? We design and produce custom carbide tools for unique applications with fast turnarounds and no compromise on quality.

Performance You Can Measure

Our advanced flute geometries and protective coatings are optimized for a longer life, precision, clean cuts, and fast production.

End-To End-Support

We do not just sell custom cutting tools-We also offer repair services for spindles and live tools, cutting tool resharpening, and cooling mist systems. Ekstrom Carlson will help you all the way through the manufacturing process.

Proven Useful Across Many Materials

Whether it is wood, steel, aluminum, plastics, composites, or non-ferrous metals, our cutting tools have proven themselves useful and repeatedly reliable to many different manufacturers.

 

Click on the below thumbnails to see fliers on our more common carbide cutting tools.

Edge Rounding Carbide Router Bits

DISCLAIMER: This information is for general information purposes only. Our intention is to provide accurate matches, or closest match.  There is NO WARRANTY OR GUARANTY, expressed or implied, regarding the accuracy of this information or its applicability to your situation.  Please contact Ekstrom Carlson with any questions

Ekstrom – Onsrud Conversion Chart

Onsrud Ekstrom NumberEkstrom Letter
52-244EC001ADAL
52-395EC001F61FT
52-390EC001F59FT
52-385EC001E61ET
52-367EC001D61DT
52-362EC001DIDR
52-325EC001CICP
52-287EC001BFBP
52-280EC001BGBN
52-270EC001BFBN
52-261EC00111FBN
52-240EC001ADBL
57-395EC003F61FT
57-390EC003F59FT
57-385EC003E61ET
57-367EC003D61DT
57-365EC003D59DR
57-362EC003DIDR
57-360EC003D57DP
57-325EC003CICP
57-287EC003B57BP
57-280EC003BGBN
57-271EC00313HBN
57-261EC00311FBN
57-251EC00309DBN
57-240EC003ADBL
52-244EC003ADAJ
56-654EC004DKDT
56-652EC004DHDT
56-650EC004DHDP
56-639EC004CHCT
56-638EC004CHCP
56-628EC004BIBT
56-626EC004BHBR
56-625EC004BHBN
56-624EC004BCBN
56-620EC00411HBT
56-618EC00411EBL
56-616EC00411CBL
56-614EC004AEBT
56-612EC004ADBL
56-610EC004A18BL
64-033EC006C57CP
64-031EC006CFCP
64-026EC006BIBP
64-025EC006BFBL
64-024EC006BCBL
64-018EC00611EBL
64-016EC00611C11L
64-012EC006ADBL
64-000EC00604BAL
61-162EC008DHDP
61-123EC008C59CX
61-122EC008CGCN
61-085EC008BHBP
61-084EC008BIBT
61-083EC008BFBQ
61-082EC008BFBN
61-081EC008BCBN
61-072EC00813EBN
61-063EC00811HBT
61-062EC00811EBL
61-061EC00811CBL
61-060EC00811EBL
61-052EC0080932BL
61-043EC008AEBT
61-042EC008ADBL
61-041EC008A18BL
61-040EC008ADBL
65-033EC009C57CP
65-027EC009BJBP
65-026EC009BIBP
65-025EC009BGBN
65-023EC009BFBN
65-020EC00911IBP
65-019EC00911E11L
65-018EC00911EBL
65-013EC009ADAL
65-012EC009ADBL
65-010EC009ABBL
65-000EC00904BAL
61-162EC012D57DP
56-164EC012D61XD
56-124EC012C59CX
56-122EC012CHCP
56-086EC012BIBT
56-082EC012BFBN
56-062LEC01211FBL
56-041EC012ADBL
52-386BEC016E61ET
52-360BEC016D57DP
52-320BEC016C57CP
52-280BEC016B57BP
52-260BEC01611FBL
52-244BEC016ADAJ
52-240BEC016ADBL
52-235BEC01604BAL
52-574EC034CRCV
52-564EC034BMBT
52-560EC034115911P
52-554EC034A57BN
52-724EC035FNFX
52-706EC035D61DT
52-702EC035DIDT
52-701EC035CJCT
52-700EC035BIBD
60-008EC042D59DT
60-006EC042D57DP
60-002EC042C57CP
60-017EC043F59FT
60-007EC043D59DR
60-001EC043C57CP
60-352EC047D61DT
60-350EC047DIDP
60-338EC047CICP
52-655EC051D61DU
52-638EC051CHCP
52-624EC051BGBP
57-637EC052CHCP
57-625EC052BFBN
60-254EC058D61DX
60-250EC058D57DR
60-246EC058C57CP
60-253EC059D59DT
60-251EC059D61DX
60-249EC059DIDR
60-245EC059C57CP
60-241EC059BHBP
60-239EC059BCBP
62-775EC065BFBN
62-768EC06511EBL
62-762EC065ADBL
62-733EC065C57CP
62-726EC065BIBP
62-733EC066C57CP
62-726EC066BIBP
62-725EC066BFBN
62-718EC06611EBL
62-712EC066ADBL
64-794EC067BFBN
63-785EC067C59CR
63-783EC067C57CP
63-776EC06728BIBP
63-769EC06711E11L
63-769EC06711EBL
63-767EC06711CBL
63-762EC067ADBL
63-760EC067ABBL
63-751EC06704BAL
63-744EC067BCBL
63-744EC068BFBN
63-735EC068C59CR
63-733EC068C57CP
63-726EC06828BIBP
63-724EC068BCBL
63-719EC06811E11L
63-718EC06811EBL
63-717EC06811CBL
63-712EC068ADBL
63-710EC068ABBL
63-701EC06804BAL
57-160EC069DHDP
57-120EC069GCCN
57-080EC069BFBN
62-624EC072BIBP
63-632EC073D58DR
63-625EC073CFCP
63-624EC073BIBP
63-622EC073BFBL
63-620EC073BCBL
63-619EC07313CBL
63-618EC07311EBL
63-614EC07311CBL
63-612EC07311C11L
63-610EC073ADBL
63-606EC073ABBL
56-320EC077C57CP
56-310EC0771857DP
56-300EC077185718P
56-285EC077BHBN
56-260EC07711FBL
56-240EC077ADBL
60-052EC081D59DT
60-351EC090DIDP
60-337EC090CICP

Frequently Asked Questions (FAQ)

 

Q: Which flute type is best for cutting plastic?

A: O-flute Carbide router bits or single-flute endmills are best for plastics because they produce clean edges, minimize heat buildup, and reduce melting of material while efficiently evacuating the chips.

Q: Do you make custom Carbide router bits and endmills?

A: Yes, we specialize in designing and manufacturing custom tools to meet exact specifications for your CNC machine and material.

Q: What are your typical lead times for custom carbide tools?

A: Custom tools are usually shipped within 2-3 weeks, depending on complexity and current production schedule.