The precision ground spiral drill slot router bits made of high-performance cutting steel withstand high conditions. The shank diameter is 8 mm for all versions. The spiral drill slot router bits are particularly suitable for use in window construction. They are also suitable for drilling in aluminium and plastics.
Precision ground at the neck - allowing them to go deeper into the workpiece than is possible with other cutters.
D= diameter | NL I/II= cutting edge length/useful length
GL= total length | S= shank diameter