Page 923 - Ceratizit Catalog

Off-centre drilling
D48
MaxiDrill Classic

In order to guarantee that four cutting edges of the insert are utilised, the following offset dimen-
sions X must be observed:

Permissible feed rates for X max :
f x .05 - .08 mm/rev.

With the maximum offset X max the hole becomes
D max = D + 2X max

for example for D = 38 mm, X max = 1.6 mm
D max = D + 3.2 = 41.2 mm

max. offset max. offset
Ø x max D max Ø x max D max
Insert size [mm] [mm] [mm] Insert size [mm] [mm] [mm]
02 14 2.0 18.0 06 37 1.9 40.8
02 15 1.8 18.6 06 38 1.6 41.2
02 16 1.5 19.0 06 39 1.4 41.8
02 17 1.2 19.4 06 40 1.2 42.4
03 18 2.0 22.0 06 41 1.0 43.0
03 19 1.8 22.6 06 42 0.6 43.2
03 20 1.6 23.2 07 38 3.5 45.0
03 21 1.3 23.6 07 39 3.3 45.6
03 22 1.0 24.0 07 40 3.0 46.0
03 23 0.8 24.6 07 41 2.8 46.6
05 24 2.3 28.6 07 42 2.5 47.0
05 25 2.2 29.4 07 43 2.3 47.6
05 26 2.0 30.0 07 44 2.0 48.0
05 27 1.8 30.6 07 45 1.9 48.8
05 28 1.6 31.2 07 46 1.8 49.6
05 29 1.5 32.0 07 47 1.5 50.0
06 30 3.2 36.4 07 48 1.4 50.8
06 31 3.2 37.4 07 49 1.2 51.4
06 32 3.2 38.4 07 50 1.0 52.0
06 33 3.0 39.0 07 51 0.7 52.4
06 34 2.7 39.4 07 52 0.6 53.2
06 35 2.5 40.0 07 53 0.5 54.0
06 36 2.2 40.4

Drilling / Technical information

The maximum radial offset dimension X influences the When drilling off-centre the radial forces are not
force compensation of the drill, therefore a low feed rate is compensated, which results in instability.
recommended.