Page 4 - Centerdrill Produktkatalog 2020 English

Centerdrill - flow drilling tool - made in germany

Centerdrill REPLACES

The flow drilling process can replace riveting, welding, insert nuts and thread cutting in thin materials.

Welding nut - Thread cutting - Rivet nut
Loosening Not enough threads Turning

Centerdrill types and sizes

The Centerdrill flow punch formers are available in diameters from 2.7 to 25.4 mm. Under optimal
conditions and depending on a material, a lifetime of up to 10.000 holes can be achieved. The
standard flow punch formers are suitable for material thicknesses from 0.8 to 11.0 mm, depending
on the thread size. The following materials can be processed: stainless steel, steel, aluminum, brass,
and copper. After applying flow drilling, DIN threads such as e.g. metric or inch threads can be formed
in the second operation. Of course, other thread types such as MF, UNC, UNF, etc. are also possible.

The Centerdrill standard versions come in four types - SHORT, LONG, SHORT-FLAT AND LONG-FLAT. They
are used depending on the material thickness and desired surface. The Centerdrill short and long flow
punch formers differ only in the length of the cylindrical part. When using these types, the material is
displaced against the direction of feed, remaining on the surface of the workpiece and forming a collar.
Both types are also available in the flat version. Thanks to these „flat“ types, Centerdrill may offer you
the cutters that remove the collar appearing on the surface in a just single processing step, producing a
flat surface.

Centerdrill type „with collar“ Centerdrill type „flat-finishing“

with collar without collar

Short Long Surface with collar Short-flat Long-flat Plan surface

Find the right Centerdrill „Flow Drilling Tool“ for your application online in our Explorer!

4