Conical Drill Bits

The Conical Drill Bits are made starting from a HSS M2 steel bar through turning, milling and grinding working operations. They allow to get holes of different sizes in the metal by using one only tool, whether starting from a preexistent hole or making it at that moment. The lateral chip relief makes easier to drill in the sheet-steel, too. There is available also one version of Chromium Steel Conical Drill Bits particularly suitable to be used with softer materials. If the lubricating oil is used the Conical Drill Bits last very long.

Stella Bianca Conical Drill Bits are available in the TiN and TiAlN version, too. TiN Conical Drill Bits have on a film of Titanium Nitride that makes the tool very tough and its skidding on the surfaces easier. TiAlN Conical Drill Bits have on a film of Titanium Nitride and Aluminium that makes them frictionless and prevent the cutting edges from stoppage. Thanks to this feature they are very good in working nonferrous metals, abrasive and gumming materials. They can tolerate very high working temperatures (up to 800°).

CONICAL DRILL BITS
Using fields (Ø mm)	0-25	6-32	6-45
Ø Shank (mm)	8	10	10
Total length (mm)	83	98	113
HSS (code)	K7	K10	K9
HSS Kobalt (code)	K8	-	-
(All types are available in TiN and TiAlN version)