MEGA-Step-Drill-Steel-Plus

Diameter d1 (mm)

4.2

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31140989

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Product description

The double-edged step drill MEGA-Step-Drill-Steel-Plus was specifically developed to produce thread core holes according to DIN 8378. With optimized centering and two guide chamfers, the step drill achieves a significant increase in wear resistance and performance.

Material suitability

Technical specifications

Senkwinkel
90   °
Produktklasse
Performance-Line  
d1
4.2   mm
d2
6   mm
d3
6   mm
l1
66   mm
l2
28   mm

l3

13.6   mm
l4
36   mm
Kühlmittelaustritt
innere Kühlmittelzufuhr  
Anzahl Schneiden (z)
2  
Bohrungstoleranz
≥ IT 9  
Schafttoleranz
h6  
Spitzenwinkel
140   °
Schaftform
HA  
Materialgruppe
MH