Punching Bit 0.118 in (3.0 mm)

Direct replacement for the Zund 3999205 HSS punching bit, with no modification needed. Punching bit for Zund cutting systems that run the 0.276 in (7.0 mm) punching tool holder. HSS punching bit with a 0.118 in (3.0 mm) punch diameter.

Sold individually.

Direct OEM replacement

This bit replaces the Zund 3999205. It is high-speed steel with a 0.118 in (3.0 mm) punch diameter and fits the 0.276 in (7.0 mm) tool holder. If your Zund runs the 3999205 now, this bit drops straight in. Not sure? Contact us before you order.

What does a punching bit do?

A punching bit cuts a clean round hole straight through the material in one stroke instead of tracing the circle with a knife. Small holes come out round and consistent, which a drag or oscillating blade struggles to do at this size.

Common questions

How do I know this fits my machine?

Check the part number on your current punch. If it reads Zund 3999205 and sits in a 0.276 in (7.0 mm) holder, this is the same bit. If you are unsure, send us the number and we will confirm before you order.

How do I know when to replace it?

Watch the holes. Ragged edges, fibers left in the hole, or slugs that stay in the material mean the punch is dull.

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.