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Centre drills
JIS HSS-E COBALT
60° Angle - form A
HSS-E Cobalt = hardness 65 HRC, to machine steels up to 1000 N/mm², cast iron up to 180 HB, copper, brass, bronze, aluminium.

This old standard is still widely used in Japan.
General tolerances
Magafor 118
Old Japanese Standard
Material :
HSS-E Cobalt
Form :
Angle 60°-Form A
Serie :
right hand cut, shorts
Use :
machine use
Type :
Metric
Catalog 219 :
Packaging : Up to ∅10x4 :
Boxes of 10 pieces only
Dxd
L
Reference
€ Unit
3,0x0,5
31
0,6-0,9
81118030500
11,25
4,0x0,8
35
0,9-1,3
81118040800
7,69
4,0x1,0
35
1,2-1,5
81118041000
6,19
5,0x1,2
40
1,3-1,8
81118051200
6,89
5,0x1,5
40
1,5-2,0
81118051500
6,89
5,0x1,5
42
2,4-3,0
81118051542
6,89
5,0x2,0
42
2,4-3,0
81118052000
6,89
6,0x2,0
45
2,0-2,5
81118062000
7,81
6,0x2,5
45
3,1-3,8
81118062500
8,26
6,0x2,5
47
3,0-3,7
81118062547
8,26
7,7x2,5 *
50
2,5-3,0
81118077250
9,29
7,7x2,5 *
57
2,5-3,0
81118077251
9,29
7,7x3,0
56
3,0-3,6
81118077300
9,29
7,7x3,2
57
3,2-3,8
81118077320
9,29
8,0x3,0
50
3,9-4,6
81118083000
10,16
8,0x3,0
53
3,8-4,5
81118083530
10,16
8,0x3,2
50
3,9-4,6
81118083200
10,16
10,0x4,0 *
65
4,5-5,1
81118104000
10,78
10,0x4,0 *
69
4,5-5,1
81118104001
12,32
11,0x4,0
69
4,5-5,1
81118114000
19,51
11,0x5,0 *
69
5,5-6,1
81118115000
19,51
11,0x5,0 *
78
5,5-6,1
81118115001
21,22
16,0x6,0
90
7,0-8,0
81118166000
40,15
18,0x6,0
95
7,0-8,0
81118186000
43,60
* Overall length L has to be mentioned