MICRO-Step-Drill-Steel

Diameter d1 (mm)

2.3

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Article

31080883

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Product description

The double-edged step drill MICRO-Step-Drill-Steel was specifically developed as a pilot drill for MICRO-Deep-Drill. Its countersinking step ensures optimal entry of the subsequent deep drill, delivering the best process results in combination with the MICRO-Deep-Drill.

Material suitability

Technical specifications

Product class
Performance-Line  
d1
2.3   mm
d2
4   mm
d3
3.45   mm
l1
55   mm
l2
16.6   mm

l3

6.9   mm
l4
33.6   mm
Cooling
internal cooling  
Number of cutting edges (z)
2  
Bore tolerance
≥ IT 9  
Shank tolerance
h6  
tip angle
142   °
Shank type
HA  
Material group
MH

Downloads

Technical drawing in dxf
31080883_607896693-000-01-ED1.DXF
Technical drawing in pdf
31080883_607896693-000-01-ED1.PDF
Technical drawing in tif
31080883_607896693-000-01-ED1.TIF
3D envelope in stp
31080883_607896694-000-01-E43.STP