Description
ADVANTAGES
- Excellent quality/value ratio
- Fully ground in M35 High Speed Steel
- TiAlN Coating
- 3 cutting edges
- Available from 6.3 to 31mm diameter
- Excellent chamfering ability
- Breakage resistance
- Long tool life
The HSS CHEMITOOL countersinker is made entirely of high-speed steel of M35 (5% Cobalt) quality, prepared for drilling in metals with a hardness up to 1200N/mm2., according to DIN 335 standard.
The 90º countersinker has as its main characteristic, the reaming, thus allowing the application of a screw or rivet, where its conical head fits correctly in the reamed area, maintaining the uniformity of the surface.
It has a TiAlN (Titanium-Aluminum-Nitride) coating to give it durable and heat dissipating properties.
One of the main advantages of this stepped drill is the faceted shank (3 faces), its helping to maintain pressure on the stepped drill, preventing it from loosening more easily from the bushing clamps.
The use of lubrication in the drilling process will increase the service life and reduce the heating of the drill, this application should not be forgotten when drilling materials with a high hardness and abrasion.
Also available in a 6-piece set (plastic case).