American National Carbide - Product Support

ANSI Standard Insert Blank Nomenclature

Simply click on any letter or digit in the part description below to see a full explanation of its meaning.

T N R A- 4 3 0

Insert Shape

A = 85° Parallelogram	E = 75° Diamond	M = 86° Diamond	S = Square
B = 82° Parallelogram	H = Hexagon	O = Octagon	T = Triangle
C = 80° Diamond	K = 55° Parallelogram	P = Pentagon	V = 35° Diamond
D = 55° Diamond	L = Rectangle	R = Round	W = Trigon

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Relief Angle

N = 0°	B = 5°	P = 11°	E = 20°	G = 30°
A = 3°	C = 7°	D = 15°	F = 25°

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Tolerance

R = Blank with grinding stock on all surfaces

S = Blank with grinding stock on top and bottom surfaces only

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Insert Type

A = With hole

B = With hole and one countersink (70° - 90°)

C = With hole and two countersinks (70° - 90°)

D = Smaller than 1/4" I.C. with hole

E = Smaller than 1/4" I.C. without hole

F = Without hole with chip grooves on two rake faces

G = With hole and chip grooves on two rake faces

H = With hole, one countersink (70° - 90°) and chip groove and one rake face

J = With hole, two countersinks (70° - 90°) and chip grooves and two rake faces

K = Smaller than 1/4" I.C. with hole and chip groove

L = Smaller than 1/4" I.C. without hole and chip groove

M = With hole and chip groove on one rake face

N = Without hole

P = 10° positive surface contour with hole and chip groove

Q - With hole and two countersinks (40° - 60°)

S = 20° positive surface contour with hole and chip groove

T = With hole, one countersink (40° - 60°) and chip groove on rake face

W = With hole and one countersink (40° - 60°)

X = Special design

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I.C. Size

This indicates the number of 1/8" of insert I.C.

For example: 4 = 4/8 = 1/2" I.C.

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Thickness

This indicates the number of 1/16" of insert thickness

For example, 3 = 3/16 = 3/16" thick

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Radius

0 = Sharp corner

1 = 1/64" radius

2 = 1/32" radius

3 = 3/64" radius

4 = 1/16" radius

6 = 3/32" radius

8 = 1/8" radius

12 = 3/16" radius

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Contact ANC Customer Service and Support at (800) 331-7585 for help in selecting the most appropriate product for your application, or click here to request literature for more specific product information.

American National Carbide

American National Carbide
915 South Cherry Street
Tomball, Texas U.S.A. 77375-6669
(281) 351-7165 - (800) 331-7585
Fax: (281) 255-9333
Contact Us by Email