Selection Guide For Drills - Bosch 1375-01 Catalogue

SELECTION GUIDE FOR DRILLS.

Selection of the right drill depends
mainly on the following two points:
Cutting speed [m/min]:
drill bit diameter and
the recommended cutting speed
of the material to be processed.
In the table, the preferred bit sizes
are assigned to the individual drill
types for some common materials.
The table shows the drill bit sizes
with which the individual types are
able to reach the recommended
cutting speeds. However, the feed
of hand-held tools cannot be incre-
ased arbitrarily with increasing bit
diameter, since the necessary feed
force can no longer be applied. For
this reason, the maximum bit dia-
meters for steel and aluminium
are allocated to the individual types
on page 6. These maximum diame-
ters were determined by tests, un-
like the information in the table. In
order to achieve a sufficient cutting
speed with normal hand pressure,
some materials should be predrilled
for the following bit diameters:
steel up to 600 N/mm 2 as of 8 mm
steel up to 600 N/mm 2 as of 6 mm
cast iron up to 180 N/mm 2 as of
10 mm
cast iron up to 300 N/mm 2 as of
8 mm
Note: If only one bit diameter is
specified in the table, it refers to
the lower limit of the recommen-
ded cutting speed. If nothing is
specified, the recommended bit
diameter is outside the clamping
range of the standard chuck.
6
0 602 120 101 / ...104 / ...107 2450 200
0 602 120 104 3700 300
0 602 121 101 /...104 / ...107 1350 200
0 602 121 104 2000 300
0 602 131 101 / ...104 / ...107 1350 200
0 602 131 104 2050 300
0 602 133 101 / ...104 690 200
0 602 133 107 1000 200
0 602 133 104 1030 300
0 602 134 101 3300 200
0 602 135 001 / ...004 1600 200
2400 200
0 602 135 101 / ...104 900 200
1500 200
0 602 135 104 1500 300
2200 300
0 602 117 001 / ...004 / ...008 510 200
0 602 117 004 760 300
0 602 119 001 / ...004 / ...008 216 200
512 200
0 602 119 004 328 300
775 300
20 to 25 15 to 20 20 to 30
Drill diameter (mm)
2 4 6 8 10 12 14 1618 20 2224 2 4 6 8 10 12 1416 18 20 2224 2 4 6 8 10 12 14 1618 20 2224 2 4 6 8 10 12 14 1618 20 2224 2 4 6 8 10 12 14 1618 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 1618 20 22 24
2 4 6 8 10 12 14 1618 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 22 24
2 4 6 8 10 12 14 1618 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 22 24
1. gear
2. gear
1. gear
2. gear
1. gear
2. gear
2 4 6 8 10 12 14 1618 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 22 24
2 4 6 8 10 12 14 1618 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 2224 2 4 6 8 10 12 14 16 18 20 22 24
1. gear
2. gear
1. gear
2. gear
10 to 20 50 to 60 30 to 40 80 to 120
7