Description

Size:
ø 3.5 x 70/39 mm

Packaged:  Qty 1

Range of application:

5% cobalt-alloyed jobber drills with an extremely sturdy construction (re-inforced web) for drilling under difficult conditions e. g. poor chipremoval and deep holes, for use in steel and cast-iron with tensile strength up to 1.300 N/mm².

Strengths

• Self-centering
• Special point shape
• Harder
• Nitro-oxidised chamfer
• Deep hole twist drill
• Big chip spaces (6 to 8 x D)
• Faster by special drill geometry
• Highly accurate centering

Alpen drill bits are manufactured in Austria.