®
Thread Turning Inserts
Whitworth - 55° BSW, BSF, BSP, BSB
EXTERNAL Ordering Code
INTERNAL Ordering Code
Pitch TPI
L
I.C.
X Y
in
Right Hand
Left Hand
Right Hand
Left Hand
16 ER 22 W 16 EL 22 W 16 IR 22 W 16 IL 22 W 16 ER 20 W 16 EL 20 W 16 IR 20 W 16 IL 20 W 16 ER 19 W 16 EL 19 W 16 IR 19 W 16 IL 19 W 16 ER 18 W 16 EL 18 W 16 IR 18 W 16 IL 18 W 16 ER 16 W 16 EL 16 W 16 IR 16 W 16 IL 16 W 16 ER 14 W 16 EL 14 W 16 IR 14 W 16 IL 14 W 16 ER 12 W 16 EL 12 W 16 IR 12 W 16 IL 12 W 16 ER 11 W 16 EL 11 W 16 IR 11 W 16 IL 11 W 16 ER 10 W 16 EL 10 W 16 IR 10 W 16 IL 10 W 16ER 9 W 16EL 9 W 16IR 9 W 16IL 9 W 16ER 8 W 16EL 8 W 16IR 8 W 16IL 8 W 22ER 7 W 22EL 7 W 22IR 7 W 22IL 7 W 22ER 6 W 22EL 6 W 22IR 6 W 22IL 6 W 22EL 5 W 22IR 5 W 22IL 5 W 22ER 5 W
22 20 19 18 16 14 12 11 10
16 16 16 16 16 16 16 16 16 16 16 22 22 22
3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 1/2 1/2 1/2
0.8 0.9 0.8 0.9 0.8 1.0 0.8 1.0 0.9 1.1 1.0 1.2 1.1 1.4 1.1 1.5 1.1 1.5 1.2 1.7 1.2 1.5 1.6 2.3 1.6 2.3 1.7 2.4 2.3 11.0 2.8 11.0 1.8 2.6 2.0 2.9 2.1 13.7 2.0 13.7 2.3 13.7 2.4 13.7 2.5 13.7 2.8 13.7
9 8 7 6 5
22U E/I/R/L 4.5 W 22U E/I/R/L 4 W
4.5 22U 1/2U
4
22U 1/2U
27 ER 4.5 W 27 EL 4.5 W 27 IR 4.5 W 27 IL 4.5 W 27ER 4 W 27EL 4 W 27IR 4 W 27IL 4 W
4.5
27 27
5/8 5/8
4
27U E/I/R/L 3.5 W 27U E/I/R/L 3.25 W 27U E/I/R/L 2.75 W 27U E/I/R/L 2.625 W 27U E/I/R/L 2.5 W 27U E/I/R/L 3 W
3.5
27U 5/8U
3.25 27U 5/8U
3
27U 5/8U
2.75 27U 5/8U *2.625 27U 5/8U
*2.5
27U 5/8U
* One cutting edge Order example: 16 IR 18 W BMA
For carbide grade and cutting speed see page A04-2 and 3
A01-15
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