Over 70 standard variants and full customization opportunities
With over 70 standard variations and full customization opportunities via MyDesign, it’s your go-to slot mill. Explore the possibilities.
No two slotting operations are the same and that’s exactly why the 335.18 disc milling cutter stands out above the rest – already available in over 70 standard cutter variants – it has now been added to the intuitive MyDesign application where you can quickly configure and quote a cutter body that’s tailored to your exact needs—no waiting, no guesswork.
It’s the ultimate slotting tool for any machine, any material, and any industry.
Your Challenge
Slotting operations vary widely in width, depth, and corner radius. Finding a tool that ticks all the boxes is a constant challenge.
Our Solution
The 335.18 system offers one of the broadest ranges on the market. It includes a wide selection of LNKT inserts with various corner radii, integrated wiper flats for fine finishes, and a complete portfolio of grades and geometries. And if the standard range doesn’t cut it, MyDesign lets you build your own cutter body in minutes. It’s all about getting the perfect fit for your application.

If you’ve ever dealt with unstable setups or long overhangs, you know how frustrating vibrations can be.
The 335.18 cutter is designed to cut through that problem—literally.
Its smooth-cutting design keeps things stable and safe, even in tough conditions. It’s so reliable, it’s the only tool in its class that’s proven to work on robotic arms, setting a new standard in slotting tool performance.
Your Challenge
Weak setups and long overhangs often lead to vibrations, poor surface finish, and even tool failure.
Our Solution
The 335.18 cutter minimizes cutting forces and keeps things steady.
That means better results, less downtime, and a smoother ride—even in the most demanding environments.
Why choose between performance and cost when you can have both? The 335.18 cutter uses double-sided inserts with four cutting edges, combined with peak-performance grades and a long-lasting cutter body. This results in longer tool life and fewer replacements and saves you money without cutting corners.
Your Challenge
Tooling costs can add up fast – especially if they wear out quickly or fail mid-operation.
This will stop production and increase costs, especially in high-volume environments where reliability is critical.
Our Solution
Built from high-quality Swedish steel, the 335.18 cutter is designed for longevity and dependability. Its extended lifespan supports sustainable manufacturing and gives you more value for your investment.

HOMERelated content
PRODUCT DETAILS
Factsheet - 335.18
335.18 & 335.25 - Half side and face
NEW 335.19 AND 335.18 DISC MILL CUTTERS
Seco News 2025.2 - Product Summary
335.18 - Adjustable width
335.25 - XNHQ & LNHQ Inserts
335.18 - LNK. Inserts
335.18 & .25 - Cassettes cutter - XN inserts
335.98 - Fixed pockets - XN inserts
335.18 & 335.25 - cassettes cutter - Round inserts
Machining Navigator / Product Catalog Milling
New Seco 335.18 and 335.19 cutters enable smooth, problem-free disc milling
335.18 - Width of Cut .375 inch (9.525mm)
335.18 - Width of cut 12 to 15mm (.472 to .591 inch)
335.18 - Width of cut 10 to 12mm (.394 to .472 inch)
335.18 - Width of cut 8 to 10mm (.312 to .394 inch)
335.18 - Width of Cut .750 inch (19.05mm)
335.18 - Width of Cut .625 inch (15.875mm)
335.18 - Width of Cut .500 inch (12.7mm)
335.18 - Width of Cut .375 inch (9.525mm)
335.18 - Width of Cut .312 inch (7.925mm)
335.18 - Width of cut 20mm (.787 inch)
335.18 - Width of cut 17mm (.669 inch)
335.18 - Width of cut 14mm (.551 inch)
335.18 - Width of cut 12mm (.472 inch)
335.18 - Width of cut 10mm (.394 inch)
335.18 - Width of cut 8mm (.315 inch)
335.18 - Fixed width
Video: 335.18 and 335.19 Disc Mill Cutters
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