Set of tungsten hole drill bits 5 pcs with file

The hole saw drill bit set allows drilling holes with diameters of 33, 53, 67, 73, and 83 mm, a half-round file coated with tungsten is also included in the delivery. The crowns are made of HCS steel and covered with a tungsten layer. The drill bits are intended for drilling into concrete, masonry, bricks, ceramics, chipboard, aerated concrete, or plastic. The package includes 5 crowns, 1 tungsten file, holder, guide drill. The entire set is stored in a plastic case.

Technical data:
Diameters of the crowns: 33, 53, 67, 73, 83 mm
Height of the crowns: 64 mm
Total length of the file: 267 mm
Working length of the file: 137 mm
Maximum rotations: 1500 rpm.-1