External Tool Identification Table ■ Catalog Classification System for Toolholders
M (1)
W L N R 16 4 D
(2)
(3)
(4)
(5)
(11)
(12)
(13)
(1) Clamping System
(3) Holder Style
(5) Feed Direction
(12) Insert Size
C
Refer to Table 1
Refer to Table 3
Refer to Table 5
Refer to Table 12
Inch Example:
(2) Insert Shape
(4) Insert Relief Angle
(11) Shank Size
(13) Qualifications
Refer to Table 2
Refer to Table 4
Refer to Table 11
Refer to Table 13
Table 1
Table 2
(1) Clamping System
(2) Insert Shape
Symbol
Clamp
Structure Symbol
Clamp
Structure
Symbol
Insert Shape
C 80° Angle D 55° Angle
Top Clamp + Pin Lock
80˚
C
M
Diamond Type
Top Clamp
55˚
Diamond Type
Lever Lock (Insert is supported by 2 faces)
R Round Type S Square Type T Triangular Type V 35° Angle Diamond Type W Uneven Trigon Type
D Double Clamp
P
Pin Lock (Eccentric Pin)
E
S
Screw-on
Table 4
35˚
Table 3
(4) Insert Relief Angle Symbol Relief Angle
(3) Holder Style (
indicates major cutting edge)
80˚
Symbol
Shape OffsetSymbol Shape Offset
B 5° C 7° D 15° E 20° F 25° N 0° P 11°
Table 11 Table 12 Table 13
95˚
A*
L
No
Yes
90˚
95˚
(13) Qualifications
(11) Shank Size
(12) Insert Size
B
N
No
No
75˚
63˚
B
A = 4.000 ± .003 B = 4.500 ± .003 C = 5.000 ± .003 D = 6.000 ± .003 E = 7.000 ± .003 J = 3.500 ± .003* V = 3.500 ± .003*
D
R
No
Yes
A
For rectangles and parallelograms two digits are necessary. 1st digit = number of eighths (1/8 ) in width. 2nd digit = number of quarters (1/4 ) in length. For equal sided inserts this indicates the inscribed circle (I.C.) in eighths (1/8 ) Examples, 6 = 6/8 = 3/4" I.C. 4 = 4/8 = 1/2" I.C. 2.5 = 2.5/8 = 5/16 I.C.
45˚
75˚
Square Shanks
This indicates the A & B dimensions in sixteenths (1/16 ). Examples:
E
S 45˚
No
Yes
60˚
*Sumitomo standard only
Master Gage Insert Nose Radius Chart for Qualified Holders
12 = 12/16 =3/4 sq. 16 = 16/16 =1.0 sq. 20 = 20/16 =1-1/4 sq.
F * 90˚
Yes T
Yes
Insert I.C. 1/4, 5/16 3/8, 1/2 5/8, 3/4
Nose Radius
60˚
Rectangle Shanks
.015 .031 .047 .062
The first digit indicates the "A" dimension in eighths (1/8 ). The second digit indicates the "B" dimension in quarters (1/4 ).
G*
Yes U 93˚
Yes
1.0
90˚
J
Yes W 60˚
examples:
Yes
86 = A x B
93˚
1.0 x 1-1/2
85 = A x B
1.0 x 1-1/4
K 75˚
Yes Y 85˚
Yes
Table 5
* 91° on our products
(5) Feed Direction
Symbol
Right Hand Symbol
Left Hand Symbol
Neutral
R
L
N
C2
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