Hole saw arbors are designed for mounting the hole saw and the pilot drill.
The PFERD range includes three different sizes. Select the appropriate arbor, taking into account the hole saw diameter and available drive system.
Purpose of the ejection spring This prevents jamming of the sawn-out material between the inner walls of the hole saw and the drill. The spring force ejects the material. Should this effect not be required for a particular application, e.g. already installed pipes, the spring can easily be removed manually without the help of tools.
Hole saw arbors LSS 4 are supplied with the HSS pilot drill LSB 6/90 and an ejection spring