Insert Nomenclature
0
Special Features |
C = Crown
W = Wiper
WC = Wiper Crown |
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1
Shape |
A = Parallelogram 85°
B = Lovejoy Ball Nose
C = Diamond 80°
D = Diamond 55°
F = Parallelogram 88°
H = Hexagon
K = Parallelogram 87°
L = Rectangle
M = Diamond 86°
O = Octagon
P = Pentagon
R = Round
S = Square
T = Triangle
V = Diamond 35°
Z = Trapezium |
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2
Clearance (C) |
N = 0°
P = 11°
D = 16°
Z = 18°
E = 20°
H = 0°/11°
J = 0°/15° |
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3
Tolerance |
| Inscribed Circle | Thickness |
| A = ±.0002" | ±.001" |
| B = ±.0002" | ±.005" |
| C = ±.0005" | ±.001" |
| E = ±.001" | ±.001" |
| F = ±.002" - ±.004" | ±.002" |
| G = ±.001" | ±.005" |
| M = ±.002" - ±.004" | ±.005" |
| U = ±.005" - ±.012" | ±.005" |
| X = ±.003" | ±.001" |
| R = Grind Stock all surfaces | |
| S = Grind Stock top & bottom | |
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4
Type |
A = with hole
B = with hole & countersink 70°-90°
E = smaller than 1/4" IC
G = with hole & chipbreaker
H = with hole, countersink & chip groove
N = no hole or chipbreaker
P = 10° positive land with hole & chipbreaker
V = with chipbreaker in cutting edge
W = with hole & countersink 40°-60°
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5
Size (IC) |
Shapes R, S, T, Z, M, C, D, H, O, P and V the figure represents the number of 1/8" in IC
Shapes L, F, A, B, and K the first digit represents the number of 1/8" in width. The second digit represents the number of 1/4" in length.
Shapes less than 1/4" IC figure represents the number of 1/32" in IC. |
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6
Thickness (T) |
Figure represents the number of 1/16"
Shapes less than 1/4" IC figure represents the number of 1/32" |
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7
Cutting Point (R) |
0 = Sharp Corner
1 = 1/64" radii
2 = 1/32" radii
3 = 3/64" radii
4 = 1/16" radii
6 = 3/32" radii
8 = 1/8" radii
A = 45° chamfer
AF = 45° edge & 25° relief
D = 30° chamfer, RH
E = 15° chamfer, RH
G = 30° chamfer, LH
H = 15° chamfer, LH
K = 30° double chamfer
L = 15° double chamfer
N = Truncated triangle
X = 1° chamfer, RH
Y = 1° chamfer, LH
Z = 1° double chamfer |
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8
Other Conditions (355-EI-1) |
A = Ground all over, light hone = .001 - .002R Hone
B = Ground all over, heavy hone = .003 - .005R Hone
C = Ground top & bottom, light hone = .001 - .002R Hone
D = Ground top & bottom, heavy hone = .003 - .005R Hone
E = Unground, heavy hone = .003 - .005R Hone
J = Polished top face = Sharp Corner
L = Left hand
M = Extra corner clearance
N = R and L rotated
R = Right hand
T = Chamfered cutting edge = .03 x 11° K-Land
V = Chamfered cutting edge, heavy honed = .03 x 11° K-Land & .003 - .005 Hone
W = Chamfered cutting edge specifications = Specified Land Width (i.e. W520 = .005" wide land x 20°)
10F = 10° dished face/sharp |
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Sample of Insert Dimensions
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