K42
A direct replacement for the Zund Z42 (3910324) and Gerber MCT SE42c, with no holder modification needed. Single edge flat stock blade for through cutting on Colex, Gerber MCT, and Zund flatbed cutting systems.
Sold individually.
Direct OEM replacement
The K42 is a confirmed fit for the Zund Z42 (3910324) and the Gerber MCT SE42c. Same form, same fit, same geometry. No holder modification needed. If you are running either machine and ordering by either of those part numbers, the K42 replaces it directly. Not sure if this fits your setup? Contact us before you order.
What is through cut cutting?
Through cutting means the blade cuts completely through all layers of the material, including any backing or liner. The cut piece separates fully from the sheet.
The K42 is flat stock and runs in both drag knife and oscillating knife holders, depending on how your machine is configured and what you are cutting. Oscillating is generally the better call on thicker or denser materials where a drag blade would deflect.
Tungsten carbide construction
The K42 is made from fine grain tungsten carbide. Carbide holds an edge longer than steel, which matters on production runs where you are cutting abrasive materials or pushing high volume. More cuts per change, less downtime.
Common questions
How do I know this fits my machine?
If your machine uses the Zund Z42 (3910324) or the Gerber MCT SE42c, the K42 is a direct fit. No modification needed. If you are unsure, reach out before ordering and we will confirm.
What materials does it cut?
The K42 is rated for self adhesive vinyl, polycarbonate, polyester, masking film, window prep vinyl, magnetic media, transfer paper, 3M VHB, corrugate, foamboard, folding carton, sandblasting mask, and varnish blankets. Cutting something not on this list? Contact us. A different geometry may be the better call.
What do the 15° and 55° angles mean?
The K42 features a 15° cutting angle and a 55° wedge angle. The 15° cutting angle keeps the blade tracking smoothly through the material with less drag. The 55° wedge angle provides the right balance of sharpness and edge durability. Together they deliver clean cuts, consistent detail, and reliable liner protection across a wide range of production materials.
How do I know when to replace it?
Watch the cut quality. If the blade is dragging rather than slicing, the material is tearing at the edges, or cut pieces are not releasing cleanly from the liner, it is time to swap. Do not wait for a full failure. A worn blade stresses the machine and wastes material.
Getting the most from your cutting table
A fresh blade is a good start. But if you are going through blades faster than expected, or cut quality has become inconsistent, the blade is rarely the whole story. Cut depth, speed, pressure, and machine condition all affect how long a blade lasts and how clean it cuts.
It is worth asking: When was your machine last serviced? Are your parameters dialed in for this material? Is this the right blade geometry for what you are cutting? Could your operators use time with someone who runs these machines every day?
Flatbed Tools offers machine service, preventive maintenance, operator training, and workflow consulting. If something is not cutting right, reach out. We have probably seen it before.