®
Thread Turning Inserts
Chasers API Buttress Casing
EXTERNAL Ordering Code
Pitch TPI
Taper IPF
No. of Teeth
L
X
Y
T
A
15.75 ER 5 BUT 0.75 3T
5
15.75
0.75
15.875
2.3
4.76
10°
3
INTERNAL Ordering Code
Pitch TPI
Taper IPF
No. of Teeth
L
X
Y
T
A
15.875 IR 5 BUT 0.75 3T
5
15.875 0.75
15.75
2.5
4.76
10°
3
Order example: 15.75 ER 5 BUT 0.75 3T BMA
Chasers OTTM Buttress Casing
EXTERNAL Ordering Code
Pitch TPI
Taper IPF
No. of Teeth
L
X
Y
T
A
15.75 ER 5 OTTM 0.75 3T
5
15.75
0.75
15.75
3.0
4.76
6°
3
INTERNAL Ordering Code
Pitch TPI
Taper IPF
No. of Teeth
L
X
Y
T
A
15.875 IR 5 OTTM 0.75 3T
5
15.875 0.75
15.875
2.5
4.76
10°
3
Chasers to be used with compatible holders on the market Order example: 15.75 ER 5 OTTM 0.75 3T BMA
For carbide grade see page A04-2
A01-42
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