Drill bits - Import export

Our drill bits for tire mold cleaning are high speed steel cobalt (Hss/Co) and have undergone a special heating process that makes them specifically suitable for the drilling and cleaning of vent holes in both steel and aluminium tire molds. Diameter range: 0.4 mm – 3.0 mm (for side walls drilling and agro tire molds); Helix range: 10 mm – 350 mm (tire mold deep drilling); Length range: 40 mm – 400 mm (extra long drills); Standard or Parabolic helix geometry.

Bossong anchors are embedded into boreholes made in the masonry to be strengthened through drilling machines with diamond bits, that work only with rotation movement in order to avoid vibration and percussion effects on the masonry. Depending on the type of masonry and on the particular setting of the site drilling works can be done with water or air cooling or with techniques that help to avoid the spread of cooling liquids. The choice of the drilling technique is decisive when works are done in unique and precious settings where painting, ancient plasters and stuccoes are present and have to be saved and preserved. The borehole diameter is designed according to anchors size it is usually about three times the steel bar diameter; the length of the anchor is another parameter to be evaluated for the right choice of the borehole diameter.