Machinery's Handbook, 31st Edition
Carbide Boring Tools 965 Table 2. ANSI Carbide-Tipped Round General-Purpose Square-End Boring Tools Style TRG with 0 ° Rake and Style TRH with 10 ° Rake ANSI B212.1-2002 (R2007) 90° ± 1° W D +0.0005 +0.0015 C ± B Tool Designation and Carbide Grade
1 16
30° REF
Rake Angle ± 1°
T
M
H ± 0.010
6° ± 1° 10° ± 2°
Optional Design
L
Tool Designation
Shank Dimensions, Inches
Tip Dimensions, Inches
Rake Angle Deg.
Setback M (Min)
Dim.Over Flat B
Nose Height H
Semi- finished a
Tip No.
Dia. D
Length C
Finished
T W L
TRG-5 TRG-5U TRH-5 TRH-5U TRG-6 TRG-6U TRH-6 TRH-6U TRG-7 TRG-7U TRH-7 TRH-7U TRG-8 TRG-8U TRH-8 TRH-8U
0
3 ⁄ 16 7 ⁄ 32 7 ⁄ 32
3 ⁄ 16 3 ⁄ 16
19 ⁄ 64
1025
1 1 ⁄ 2
1 ⁄ 4
1 ⁄ 4
5 ⁄ 16
1 ⁄ 16
±.005
10
0
11 ⁄ 32
1030
1 3 ⁄ 4
5 ⁄ 16
1 ⁄ 4
3 ⁄ 16
3 ⁄ 8
1 ⁄ 16
±.010
10
1 ⁄ 4 1 ⁄ 4
0
13 ⁄ 32
1080
2 1 ⁄ 2
5 ⁄ 16
3 ⁄ 8
3 ⁄ 16
7 ⁄ 16
3 ⁄ 32
±.010
10
5 ⁄ 16 9 ⁄ 32
0
15 ⁄ 32
1090
2 1 ⁄ 2
3 ⁄ 8
3 ⁄ 8
1 ⁄ 4
1 ⁄ 2
3 ⁄ 32
±.010 10 a Semifinished tool will be without Flat (B) and carbide unground on the end. Table 3. Solid Carbide Square and Round Boring Tool Bits + 0 B –.002 + 0 A –.002 C 10° Solid Carbide Square Boring Tool Bits Style SS D 11 ⁄ 32 +.0005 –.0015
C
Solid Carbide Square Boring Tool Bits Style SR
Square Bits
Round Bits
Tool Designation A B C
Tool Designation D C
Tool Designation D C
Tool Designation D C
SS-58
5 ⁄ 32 5 ⁄ 32 1
SR-33
SR-55 SR-64 SR-66 SR-69 SR-77
SR-88 SR-810 SR-1010
1
3 ⁄ 32 3 ⁄ 8 3 ⁄ 32 1 ⁄ 2
5 ⁄ 32 5 ⁄ 8 3 ⁄ 16 1 ⁄ 2 3 ⁄ 16 3 ⁄ 4
1 ⁄ 4 1 ⁄ 4
3 ⁄ 16 3 ⁄ 16 1 1 ⁄ 4 SR-34
SS-610 SS-810 SS-1012 SS-1214
1 1 ⁄ 4
1 1 ⁄ 4 SR-44
5 ⁄ 16 1 1 ⁄ 4
1 ⁄ 4
1 ⁄ 2 3 ⁄ 4
1 ⁄ 4
1 ⁄ 8 1 ⁄ 8 1 ⁄ 8
5 ⁄ 16 5 ⁄ 16 1 1 ⁄ 2 SR-46
3 ⁄ 16 1 1 ⁄ 8 … … …
1 3 ⁄ 4 SR-48
1
… … …
3 ⁄ 8
3 ⁄ 8
7 ⁄ 32 7 ⁄ 8
All dimensions are in inches. Tolerance on Length: Through 1 inch, + 1 ⁄
32 , - 0; over 1 inch, + 1 ⁄
16 , - 0.
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