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Centre drills
Center drills for threaded spindles
60° Angle-Form D
Red'X coating
HSS-E Cobalt + Red'X = hardness 65 HRC, to machine steels up to 1000 N/mm², Cast irons up to 200 HB, copper, brass, bronze, aluminium. The Red'X coating = hardness 3500 HV considerably increases the tool life for intensive use, by increasing wear resistance and improving surface finish.

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.
General tolerances
Red'X 0985
DIN 332/2 - DA
Material :
HSS-E Cobalt
Coating :
Red'X
Form :
60° angle-Form DA
Serie :
right hand cut, for threaded holes
Use :
machine use
Type :
Plain shank
Catalog 219 :
Screw
d1
d2
d3
L
Reference
€ Unit
M3
2,5
3,2
6,0
55
18
9,0
8
800985M0300
58,21
M4
3,3
4,3
8,0
63
23
12,6
11
800985M0400
55,77
M5
4,2
5,3
10,0
67
27
15,1
13
800985M0500
66,58
M6
5,0
6,4
12,5
71
33
18,6
16
800985M0600
78,40
M8
6,8
8,4
14,0
88
41
23,0
19
800985M0800
85,91
M10
8,5
10,5
16,0
90
47
27,7
23
800985M1000
103,56
M12
10,2
13,0
20,0
105
59
34,5
28
800985M1200
131,17