Description

Used for heavy duty drilling in work Hardening steel with a manganese content of 12-14 percent .
2 Morse taper
Overall length 190mm
Flute length 92mm

Operating Conditions
– cutting speed between 3-4 meters per minute
– a feed of only 60 percent of standard drill
– Very rigid machine set-up
– drilled without coolant

Precautions
– drill must not touch work without feed being engaged – no marking of work surface ie centre punch