Page 303 - Tungaloy Catalog

Designation System for TAC Boring Toolholders
Inch

Rhombic
C
80°

Rhombic
D
55°

Parallelogram
E
55°

S Square

5 P Lever-lock type
T Triangle

TAC Internal Toolholders S Screw-on type Y 35° with 25° tip
Rhombic
V
35°

Rhombic

4
3 Clamping mechanism W Insert shape Trigon

3 4
A 12 - S T

1 2

1 Shank composition 2 Shank diameter

Steel shank Shank dia in shown in
16th of
A with oil hole an inch.
Ex. 12: ø .750"
Carbide shank
E with steel head
and oil hole

5–2