External Tool Identification Table ■ Catalog Classification System for Toolholders
M (1)
W L N R 16 4 D
(13)
(2)
(3)
(4)
(5)
(11)
(12)
(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
(2) Insert Shape
(4) Insert Relief Angle
(11) Shank Size
(13) Qualifications
Inch Example:
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
80° Angle Diamond Type 55° Angle Diamond Type
C
Top Clamp + Pin Lock
80˚
C
M
Top Clamp
D
55˚
Lever Lock (Insert is supported by 2 faces)
R
D
P
Round Type
Double Clamp
S
Square Type
Pin Lock (Eccentric Pin)
E
S
Triangular Type
Screw-on
T
35° Angle Diamond Type Uneven Trigon Type
V
35˚
Table 4
Table 3
(4) Insert Relief Angle Symbol Relief Angle B 5° C 7° D 15° E 20° F 25° N 0° P 11°
(3) Holder Style (
indicates major cutting edge)
W
80˚
Symbol
Shape OffsetSymbol
Shape Offset
95˚
Table 11 Table 12 Table 13
A *
L
No
Yes
90˚
95˚
(13) Qualifications
(11) Shank Size
(12) Insert Size
N
B
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:
S
E
No
Yes
45˚
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˚
T
Yes
Yes
Insert I.C.
Nose Radius
60˚
Rectangle Shanks
1/4, 5/16 3/8, 1/2 5/8, 3/4
.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 *
U
Yes
Yes
93˚
1.0
90˚
W
J
examples:
Yes
Yes
60˚
86 = A x B
93˚
1.0 x 1-1/2
85 = A x B
1.0 x 1-1/4
K
Y
Yes
Yes
85˚
75˚
* 91° on our products
Table 5
(5) Feed Direction
Symbol
Right Hand Symbol
Left Hand Symbol
Neutral
R
L
N
C2
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