ISO Insert Designation
Metric
04
08
5 Size
7 Corner continued
Integers to be preceded by a 0 (zero).
Disregard any decimals. e.g. 9.525 = 09
C, D,
E, M,
V
A, B,
K
I
W
00
01
02
04
08
12
16
20
Examples:
Inserts with rounded corners. The corner radius
is indicated in 0.1mm. Integers to be preceded by a
0 (zero). If the corner is not rounded, use the
symbol of designation 00 (zero zero).
= SHARP CORNER
= 0.1
=
=
0.2
0.4
=
=
0.8
1.2
=
=
1.6
2.0
24
28
32
40
48
56
64
X
=
=
2.4
2.8
=
=
3.2
4.0
=
=
4.8
5.6
= 6.4
= ANY OTHER
6 Thickness
Integers to be preceded by a 0 (zero) or the letter T.
Disregard any decimals.
Examples:
s
A, B,
C, N,
O, W.
s
H, M,
R, T.
s
s
F, G,
J, U.
01
T1
02
03
T3
04
05
06
07
09
11
12
14
15
1.588
1.984
2.381
3.175
3.969
4.763
5.556
6.350
7.938
9.525
11.113
12.700
14.288
15.875
Major cutting
edge
Chamfered
corner
Wiper edge
Minor cutting edge
8 Edge Condition
Symbol
7 Corner
Inserts with wiper edges
Cutting edge Angle (gr)
Wiper edge normal
1st letter:
Clearance 2nd letter: (n)
A
D
E
F
G
P
Z
45
=
=
=
60
75
85
=
=
=
87
90
ANY OTHER
A
B
C
D
E
F
G
N
P
Z
=
=
=
5
7
15
=
=
=
=
20
25
30
0
=
=
11
ANY OTHER
51
Sharp
Honed
(Rounded)
Chamfered
(Negative Land)
Chamfered +
Honed
External Toolholders (INCH)
ISO Designation (ISO 5608)
1 Assembly
2 Insert Shape
M or C
Clamp
Lock
S
Posicut
85
82
80
55
75
86
135
55
120
108
3 Tool Style
360
90
90
60
35
80
4 Rake
INCH
15
45
2730
27 30
15
15
45
N
Negative
P
Positive
0
Neutral
5 Hand
E
30
27
1730
R
Right
Hand
N
Neutral
L
Left
Hand
52
External Toolholders (INCH)
16
ISO Designation (ISO 5608)
6 Pocket Type
10
9 Qualified Method & Length
- Full Double Wall
INCH
BACK & END
S Single Wall
7 Tool Height
INCH
FRONT & END
= 4.000
= 4.000
= 4.500
= 4.500
= 5.000
= 5.000
= 6.000
= 6.000
= 7.000
= 7.000
06 =
0.375
08 =
0.500
= 8.000
= 8.000
0.625
= 5.500
= 5.500
10 =
0.750
= 9.000
= 9.000
16 = 1.000
= 12.000
= 12.000
20 = 1.250
= 14.000
= 14.000
12 =
24 =
1.500
32 =
2.000
44 =
0.500
Length must be specified.
e.g. MTANR-246Z (6.500")
55 = 0.625
64 =
0.750
66 =
0.750
85 =
1.000
10 Shank Modification (Optional)
= Bullard
= Giddings & Lewis
1.000
88 =
1.000
1.250
= LeBlond
= Monarch
= New Britain
= Sheldon
8 Insert Size
For equal sided inserts,
this indicates the inscribed
circle (IC) in 1/8".
IC
EXAMPLES
1/8
1/2
1-2
5/32
5/8
1-5
3/16
3/4
1-8
7/32
7/8
1/4
= 1
2-5
5/16
3/8
= American
86 =
91 =
10
= 11/4
For rectangles and parallelograms, 2 digits are necessary.
1st digit = Number of 1/8" in width.
2nd digit = Number of 1/4" in length.
53
Internal Boring Bars (INCH)
SI
Clamp Lock Designation
4 Bar Style
1 Bar Type
Steel shank and
coolant hole.
Steel shank and antivibration device.
Cemented carbide
shank with steel
head.
CI
carbide integral
shank
Steel shank,
anti-vibration device
and coolant hole.
Cemented carbide
shank with steel
head and coolant
hole.
Cemented carbide
shank with
steel head and
anti-vibration device.
Cemented carbide
shank with steel
head, coolant hole
and anti-vibration
device.
Heavy metal shank.
Heavy metal shank
and coolant hole.
S
SI
Steel shank.
Steel intregal shank.
2 Assembly
INCH
INCH
U 3
K 15
W 2770
10
Q 1730
S 45
S
Posicut
M or C
Clamp
Lock
3 Insert Shape
A
85
82
80
55
75
90
86
55
120
5 Rake
N
Negative
W
P
Positive
108
360
90
60
35
80
0
Neutral
54
Internal Boring Bars (INCH)
Clamp Lock Designation
20
6 Hand
11
10
9 Insert Size
For equal sided inserts,
this indicates the inscribed
circle (IC) in /8".
R
Right
Hand
IC
EXAMPLES
N
Neutral
L
Left
Hand
1/8
1/2
1-2
5/32
5/8
1-5
3/16
3/4
1-8
7/32
7/8
1/4
= 1
2-5
5/16
3/8
10
= 11/4
For rectangles and parallelograms, 2 digits are necessary.
1st digit = Number of 1/8" in width.
7 Pocket Type
2nd digit = Number of 1/4" in length.
- Full Double Wall
S Single Wall
10 Bar Length
INCH
8 Bar
INCH
04
05
06
08
10
12
16
0.250
0.312
0.375
0.500
0.625
0.750
1.000
20
24
28
32
36
40
1.250
1.500
1.750
2.000
2.250
2.500
11 Optional
A Adjustable.
W Internal coolant provision.
55
F =
H =
K =
M=
P =
Q =
R =
S =
T =
U =
V =
W=
Y =
X =
3.150
3.937
4.921
5.905
6.693
7.087
7.874
9.842
11.811
13.780
15.748
17.716
19.685
SPECIAL
External Toolholders (METRIC)
ISO Designation (ISO 5608)
1 Assembly
S
Posicut
85
82
80
55
75
86
135
55
120
P
Lever
Lock
3 Tool Style
75
360
90
60
35
80
4 Clearance
METRIC
90
108
90
2 Insert Shape
M
Clamp
Lock
90
107 30
15
11730
75
20
25
30
90
93
Other normal clearances requiring
SPECIAL specification Symbol O.
45
11
45
60
90
75
95
60
93
7230
50
W 60
63
5 Hand
R
Right
Hand
N
Neutral
85
L
Left
Hand
56
