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Countersinks
Three flutes countersinks
90° Angle
TiN coating
HSS-E Cobalt + TiN = hardness 65 HRC, to machine steels up to 1000 N/mm², cast irons up to 200HB, copper, brass, bronze, aluminium. The TiN coating = hardness 2300 HV increases the tool life for intensive use.

Nota :
Ø6,3-80mm : shank + 3 flats.
Effective holding thanks to the 3 flats.
See 4837 code.
General tolerances
TiN 4831
DIN 335-C
Angle :
90°
Material :
HSS-E Cobalt
Coating :
TiN
Serie :
right hand cut
Use :
machine use
Type :
Metric / inch
Catalog 239 :
D
mm
D
inch
d1
maxi
d2
L
Reference
€ Unit
4,0
1,3
4
40
84483104000
20,19
4,3
1,3
4
40
84483104300
20,19
5,0
1,5
4
40
84483105000
20,19
5,3
1,5
4
40
84483105300
20,19
5,8
1,5
5
45
84483105800
20,19
5,8
1,5
6 *
45
84483105860
20,19
6,0
1,5
5
45
84483106000
20,19
6,0
1,5
6 *
45
84483106060
20,19
6,3
1,5
5
45
84483106300
20,19
6,3
1,5
6 *
45
84483106360
20,19
6,35
1/4"
1,5
6,35
45
84483106350
20,19
7,0
1,8
6
50
84483107000
24,20
7,3
1,8
6
50
84483107300
24,20
7,93
5/16"
2,0
6,35
45
84483107930
24,20
8,0
2,0
6
50
84483108000
24,20
8,3
2,0
6
50
84483108300
24,20
9,0
2,2
6
50
84483109000
27,36
9,4
2,2
6
50
84483109400
27,36
9,52
3/8"
2,2
6,35
50
84483109520
27,36
10,0
2,5
6
50
84483110000
27,36
10,4
2,5
6
50
84483110400
27,36
11,5
2,8
8
56
84483111500
31,74
12,0
2,8
8
56
84483112000
31,74
12,4
2,8
8
56
84483112400
31,74
12,70
1/2"
2,9
6,35
50
84483112700
31,74
13,4
2,9
8
56
84483113400
39,52
14,4
2,9
8
56
84483114400
39,52
15,0
3,2
8 *
56
84483115080
39,52
15,0
3,2
10 *
60
84483115000
39,52
15,87
5/8"
3,2
9,52
60
84483115870
39,52
16,5
3,2
8 *
56
84483116580
39,52
16,5
3,2
10 *
60
84483116500
39,52
19,0
3,5
10
63
84483119000
49,85
19,05
3/4"
3,5
9,52
60
84483119050
49,85
20,5
8 *
84483120580
49,85
20,5
3,5
10 *
63
84483120500
49,85
23,0
3,8
10
67
84483123000
64,45
25,0
3,8
10
67
84483125000
64,45
25,0
3,8
Morse 2
105
84483125020
124,14
25,4
1"
3,8
9,52
70
84483125400
64,45
Articles/page 
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* Please mention the shank Ø when ordering

Sets

Designation
Composition
Reference
€ Unit
SET 4831
5 countersinks 90° TiN
Ø 10,4 - 16,5 - 20,5 - 25 - 31
84483100000
274.85
SET 4831/2
6 countersinks 90° TiN
Ø 6,3-8,3-10,4-12,4-16,5-20,5
84483100002
192.15
SET 4831/5
6 countersinks 90° TiN inches
Ø 6,35 - 7,93 - 9,52 - 12,7 - 15,87 - 19,05
84483100005
192.15
SET 4831/6
4 countersinks 90° TiN
with auto-lock chuck
Ø 6,3 -12,4 -16,5 - 20,5
with 1 auto-lock chuck 4002
84483100006
217.69