accueil > CENTERING - SPOTTING > Centre drills
Centre drills
ASA Radius - form R
HSS = hardness 63 HRC, to machine steels up to 800 N/mm², copper, brass, bronze, aluminium up to 6% Si.

The magafor centre drill with radius thanks to its special profile, is more robust than the 60° centre drill :
the radius eliminates the risk of breakage
it provides an exact bearing
it serves as a protective chamfer.
General tolerances
Magafor 125
American standard
Material :
HSS
Form :
With radius-Form R
Serie :
right hand cut, shorts
Use :
machine use
Type :
Inch
Catalog 219 :
Packaging : Up to N°5-R :
Boxes of 10 pieces only
ASA
N°
Dxd
mm
Dxd
inch
L
R
Reference
€ Unit
1-R
3,17x1,19
1/8x3/64
31
3,9
3,3-3,7
81125010000
5,98
2-R
4,76x1,98
3/16x5/64
47
5,8
5,2-5,6
81125020000
6,64
3-R
6,35x2,77
1/4x7/64
50
8,0
7,0-7,5
81125030000
7,41
4-R
7,93x3,17
5/16x1/8
54
10,0
8,7-9,3
81125040000
8,62
5-R
11,11x4,76
7/16x3/16
70
12,5
12,3-12,9
81125050000
16,75
6-R
12,7x5,55
1/2x7/32
76
13,4
13,4-14,5
81125060000
18,78
7-R
15,87x6,35
5/8x1/4
82
17,8
17,0-17,7
81125070000
28,27
8-R
19,05x7,93
3/4x5/16
89
20,0
20,6-21,4
81125080000
52,15