Boring Bar ANSI Designation Chart

S 16 T   - S C L C R -   3

Boring Bar Type

Bar Dia

Length

Insert Holding

Insert Shape

Boring Bar Style

Insert Relief L

Hand

Insert IC

S = solid steel bar

03 = 3/16"

F = 3"

M = clamp and lock pin

C = 80 deg. diamond

F = 0 end cutting

N = 0

R = right hand

1.2 = 5/32"

A = steel bar w/ coolant hole

04 = 1/4"

G = 3 1/2"

P = lock pin only

D = 55 deg. diamond

J = -3 side cutting

A = 3

L = left hand

1.5 = 3/16"

B = solid steel anti-vib bar

05 = 5/16"

H = 4"

C = clamp only

K = paralellogram

K = 15 end cutting

B = 5

1.8 = 7/32"

D = steel anti-vib bar w/ coolant hole

06 = 3/8"

J = 4 1/2"

S = screw lock only

L = rectangle

L = -5 side & end cut

C = 7

2 = 1/4"

C = carbide bar (steel head)

08 = 1/2"

K = 5"

R = round

Q = -17.5 end cutting

P = 11

2.5 = 5/16"

E = carbide bar (steel head) w/ coolant hole

10 = 5/8"

L = 5 1/2"

S = square

S = 45 end cutting

D = 15

3 = 3/8"

F = carbide anti-vib bar (steel head)

12 = 3/4"

M = 6"

T = triangle

U = -3 end cutting

E = 20

4 = 1/2"

G = carbide anti-vib bar (steel head) w/ coolant hole

16 = 1"

N = 6 1/2"

V = 35 deg. diamond

W = -30 end cutting

F = 25

5 = 5/8"

H = heavy metal bar

20 = 1 1/4"

P = 6 3/4"

W = trigon

Y = 5 end cutting

G = 30

6 = 3/4"

J = heavy metal bar w/ coolant hole

24 = 1 1/2"

Q = 7"

8 = 1"

28 = 1 3/4"

R = 8"

10 = 1 1/4"

32 = 2"

S = 10"

36 = 2 1/4"

T = 12"

40 = 2 1/2"

U = 14"

V = 16"

W = 18"

Y = 20"

Z = special