LOVEJOY Tool Company, Inc. 800-843-8376


Insert Nomenclature

_
0
O
1
E
2
C
3
___
4
__
6
5
4
6
3
7
W520
8


0
Special Features
C = Crown
W = Wiper
WC = Wiper Crown
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
2
Clearance (C)
N = 0°
P = 11°
D = 16°
Z = 18°
E = 20°
H = 0°/11°
J = 0°/15°
3
Tolerance
Inscribed CircleThickness
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 

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°
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.
6
Thickness (T)
Figure represents the number of 1/16"

Shapes less than 1/4" IC figure represents the number of 1/32"

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
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




Sample of Insert Dimensions