REISEN HSS annular cutters, also known as rotabroaches or simply mag drill cutters, are manufactured in Germany with a 5% cobalt content. Harder than standard HSS cutters, you can expect a much longer life than you may be used to.
Multi-fit shank style allows use in almost any mag drill
Thin-wall design reduces cutting load, especially on low-power machines
5% Cobalt content means they stay sharper for longer
Cobalt content allows operators to take the cutters as hot as blue without compromising edge hardness
Standard 1/4" (6.35mm) centre pin size up to a cutter size of 65mm
Deciding what cutter to choose has evolved into a sometimes complex topic these days. There are many different cutter options for different purposes and performance levels. This article is designed to shed light on the main different cutter options available.