Fits your needs
HOFFMANN – 116040 5
Description
Technical specification
Version:
With point geometry shape A from size 2.5 mm.
Strengthened core without core taper. Precision ground point. Wide flutes with heavily honed
back edges. Bright ground surface finish.
Advantage:
For deep hole drilling and for use with drill bushings.
Recommendation:
Maximum drilling depth:
L2 = LC – 1.5 Ă DC.
Note:
Suitable NC spotting drills No. 112120, 112140 and 112170 with 142° tip angle for enhanced
process reliability.
Technical DataÂ
| Feed f in aluminium short-chipping | 0.09 mm/rev. |
| Nominal â DC | 5 mm |
| Flute length Lc | 87 mm |
| Number of cutting edges Z | 2 |
| Tolerance nominal â | h8 |
| Shank â Ds | 5 mm |
| Overall length L | 132 mm |
| Standard | DIN 340 |
| recommended maximum drilling depth L2 | 79.5 mm |
| Point angle | 130 ° |
| Shank | Plain shank |
| Coating | uncoated |
| Tool material | HSS |
| Type | W |
| Helix angle |  30-40 ° |
| Through-coolant | No |
| Colour ring | Yellow |
| Type of product | Jobber drill |
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