American National Carbide - Product Support

ANSI Standard Toolholder Nomenclature

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

M T F N R 16 4 D

Insert Holding

M = Clamp and lock pin

P = Lock pin only

C = Clamp only

S = Screw lock only

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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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Toolholder Style

A = 0° side cutting straight shank	J = -3° side cutting offset shank	S = 45° side cutting offset shank
B =15° side cutting straight shank	K = 15° end cutting offset shank	T = 30° side cutting offset shank
C = 0° end cutting straight shank	L = 5° side & end cutting offset shank	U = -3° end cutting offset shank
D = 45° side cutting straight shank	M = 40° side cutting straight shank	V = 17.5° side cutting straight shank
F = 0° end cutting offset shank	N = 27° side cutting straight shank
G = 0° side cutting offset shank	R = 15° side cutting offset shank	All lead angles ± 1°

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Insert Relief Angle

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

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Hand

R = Right hand

L = Left hand

N = Neutral hand

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Shank Size

Square Shanks

Rectangular Shanks

Number indicates the A & B dimensions in 1/16". For example:

12 = 3/4" square

16 = 1" square

The first digit indicates the A dimension in 1/8". The second digit indicates the B dimension in 1/4". For example:

86 = 1.0" x 1-1/2"

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Insert Size

For equilateral inserts, this indicates the inscribed circle (I.C.) in 1/8". For example:	For rectangles and parallelograms, two digits are necessary:
6 = 6/8 = 3/4" I.C.	1st digit = Number of 1/8" in width
4 = 4/8 = 1/2" I.C.	2nd digit = Number of 1/4" in length

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Qualifications

A = 4.000 ± .003"	M = 4.000 ± .003"
B = 4.500 ± .003"	N = 4.500 ± .003"
C = 5.000 ± .003"	P = 5.000 ± .003"
D = 6.000 ± .003"	R = 6.000 ± .003"
E = 7.000 ± .003"	S = 7.000 ± .003"
F = 8.000 ± .003"	T = 8.000 ± .003"
G = 5.500 ± .003"	H = 5.500 ± .003"

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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