ANTI-VIBRATION COUNTERSINKS with straight shank
New range of POLLEDRI Countersinks with 3 90 ° cuts with ASYMMETRIC GEOMETRY OF THE CUTTERS
These POLLEDRI countersinks, thanks to their asymmetrical geometry of the cutting edges which reduces the axial force compared to traditional countersinks, guarantee a significant reduction in vibrations, and a consequent better finish of the countersink.
Their rectified rake angle at 20 ° and at a constant value, guarantees the reduction of friction and allows numerous re-sharpening.
Chip evacuation is significantly improved due to the high distance of the grooves between the three cutting edges.
ASYMMETRICAL GEOMETRY OF THR CUTTING EDGES
Decreases the axial force compared to the traditional countersinks,
reducing the tool vibrations and giving a better finish of the
countersinking
RECTIFYED RAKE ANGLE AND DIAMETER
The rake angle rectifyed to 20° and at constant value,
grants a friction decrease and a great many regrinds
OPENED WIDE GROOVES
The high grooves distance between the three cutting edges
with unequal division of the flutes, grants a better chip
evacuation
Available from Diameter 6.3 to Diameter 31.0, in the versions HSS-E 5% Co, HSS-E 5% Co + TiN and 5% Co + TiAlN up to 3500HV,
these POLLEDRI ANTI-VIBRATION Countersinks further enrich the wide range of POLLEDRI Countersinks to solve any critical issues related to flaring problems.
VERSION HSS-E 5% Cobalt: 65 HRC
ANTIVIBRATION Countersinks
VERSION HSS-E 5% Cobalt + TiN coating: 65 HRC + 2300 HV
ANTI-VIBRATION countersinks for use on abrasive materials
VERSION HSS-E 5% Cobalt + AlTiCN coating: 65 HRC + 3500 HV
High performance ANTI-VIBRATION countersinks