High Speed Steel extra length drill for general machining applications.
Ideal for long reach applications and for drilling deeper holes by interrupted drilling (pecking) Steam tempered finish improves wear resistance Capable of drilling holes up to 10x diameter in most materials
Standards
BS 328
HSS Long & Extra Long Series
These HSS straight shank, right hand cutting long series twist drills are capable of drilling up to 10x the drill diameter before the flute needs to be cleared, to avoid fouling. They are made to BS328/DIN340 RN and ISO standards, and are recommended for use with steel and cast iron.
