150Y Tin Supercobalt Jobber

Parallel shank ISO length                                 M42 8% Cobalt High Speed Steel                BS328/1 DIN338RN
Aerospace quality                                             135° split point, h8 diameter tolerance          Right hand cutting
150M Supercobalt drills given a PVD coating of Titanium Nitride (yellow-gold finish)*

For dimensions please see No. 150A

*The coating gives the drill a superhard surface which is claimed to give greater durability and capability to the tool.
The surface is low-friction and may improve lubrication. Although TiN coating has advantages in some particular
applications, our engineers RECOMMEND that these drills are only specified where the coating has been shown to
be advantageous. Note that the coating at the cutting tip, where it operates, will wear fairly quickly and progressively
lose much of its function.

The sizes below are generally in stock. Sizes not listed may be coated to order, the unit price depending upon the quantity ordered.