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Centre drills
Center drills for threaded spindles
60° Angle with flat-Form D
HSS-E Cobalt = hardness 65 HRC, to machine steels up to 1000 N/mm², cast iron up to 180 HB, copper, brass, bronze, aluminium.

HSS-E Cobalt = hardness 65 HRC, to machine steels up to 1000 N/mm², cast iron up to 180 HB, copper, brass, bronze, aluminium.

Center drills for threaded spindles are designed to do the following in a single operation :
make the preliminary tap hole
make the tap entrance
do the centering

Main use :
To center or to bore the shafts of electric motors, pumps, speed-reducing gear.

It have also the followings :
a flat area for carbide ;INSERT INTO
two grooves for lubrificating
General tolerances
Magafor 0280
DIN 332/2 - DA
Material :
HSS-E Cobalt
Form :
60° angle-Form DA
Serie :
right hand cut, for threaded holes
Use :
machine use
Type :
with flat and grooves for coolant
Catalog 219 :
Screw
d1
d2
d3
L
P -0,1
Reference
€ Unit
M4
3,3
4,3
8,0
63
23
12,6
11
6,75
800280M0400
63,10
M5
4,2
5,3
10,0
67
27
15,1
13
8,45
800280M0500
68,84
M6
5,0
6,4
12,5
71
33
18,9
16
10,45
800280M0600
86,05
M8
6,8
8,4
14,0
88
41
23,0
19
12,50
800280M0800
91,78
M10
8,5
10,5
16,0
90
47
27,7
23
14,85
800280M1000
103,25
M12
10,2
13,0
20,0
105
59
34,5
28
18,45
800280M1200
126,21
M16
14,0
17,0
25,0
132
67
41,3
33
23,40
800280M1600
240,93
M20
17,5
21,0
31,5
145
77
48,3
38
29,35
800280M2000
332,72
M24
21,0
25,0
40,0
160
90
57,0
45
36,50
800280M2400
516,29