Page 304 - Tungaloy Catalog

Designation System for TAC Boring Toolholders

Symbol Style Offset G 91° with S 45° with

V without
A without 91° 72.5°
90°
J with U 93° with
93°
B without K 75° with X* 100° with
75°
without 95° with 80° with
C 90° L 95° Y

D without N without Z without
45° 63° 93° 5
without 62.5° No mark: ISO standard
E P* without Note: *mark.-Tungaloy
Standard
60°
F 91° with Q* 45° with
C
5 Cutting edge style
7°
B TAC Internal Toolholders
5°
N
0°

P
11°
6 Relief angle of insert

5 6 R 2
U P - D14

7 8 9

9 Min. bore. diameter
7 Hand of tool 8 Insert size (I.C.)
Mimimum boring
diameter in shown
in 16th of an inch.
R S T C R Ex. D14: ø .875"
I.C. I.C. I.C. I.C.

L

5–3