®
Thread Turning Inserts
Chasers API Round
EXTERNAL Ordering Code
Pitch TPI
Taper IPF
No. of Teeth
L
X
Y
T
A
15.75 ER 10 API RD 3T 15.75 ER 8 API RD 3T
10
15.75 15.75
0.75 0.75
15.435 15.84
4.4 4.4
4.76 4.76
6° 6°
3 3
8
Order example: 15.75 ER 10 API RD 3T BMA
INTERNAL Ordering Code
Pitch TPI
Taper IPF
No. of Teeth
L
X
Y
T
A
15.75 IR 10 API RD 4T 15.875 IR 8 API RD 4T
10
15.75
0.75
15.75 15.75
5.7 4.2
4.76 4.76
10° 10°
4 4
8
15.875 0.75
Chasers to be used with compatible holders on the market Order example: 15.75 IR 10 API RD 4T BMA
For carbide grade see page A04-2
A01-40
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