Page 116 - MILLING CATALOG p319-550

THREAD MILLING TOOLS MTH-BSPT (int. & ext.) TP
Helical External & Internal Thread W1
Milling Inserts for BSPT Thread
for Steam, Gas and Water Pipes lNSL

S1

TP NUT Dimensions
27.5° 27.5°

90° RE=0.137TP
BSPT Taper 1:16SCREW

Designation TPI(1) INSL W1 S1 THID(2) THOD(3) TP(4) IC908

MTH 23 11 BSPT 11.0 27.00 8.00 3.50 >1" BSPT >1" BSPT 2.309 •
2.309 •
MTH 32 11 BSPT 11.0 32.00 9.00 4.00 >1_1/8" BSPT >1" BSPT 2.309 •
2.309 •
MTH 45 11 BSPT 11.0 37.00 11.90 5.00 >1_3/4" BSPT >1" BSPT
TP(4)
MTH 63 11 BSPT 11.0 38.00 11.90 5.00 >2_1/2 BSPT >1" BSPT
2.209 •
• For cutting speed recommendations, see page 435 2.209 •
(1) Threads per inch 2.209 •
(2) Internal thread designation 3.175 •
(3) External thread designation 2.209 •
(4) Thread pitch 3.175 •
For tools, see pages: MTSRH (endmills) (418) • MTSRH (helical shell mill) (418)
TP(4)
MTH-NPT (int. & ext.) TP
External & Internal NPT Helical W1 2.209 •
Thread Milling Inserts for 2.209 •
Steam, Gas and Water Pipes lNSL

S1

TP NUT Dimensions
30° 30°

90° Taper 1:16 IC908
SCREW

Designation TPI(1) INSL W1 S1 THID(2) THOD(3)

MTH 23 11.5 NPT 11.5 27.00 8.00 3.50 1-2" NPT 1-2" NPT

MTH 32 11.5 NPT 11.5 32.00 9.00 4.00 1_1/4"-2" NPT 1-2" NPT

MTH 45 11.5 NPT 11.5 37.00 11.90 5.00 2" NPT 1-2" NPT

MTH 45 8 NPT 8.0 37.00 11.90 5.00 2_1/2"-3" NPT -

MTH 63 11.5 NPT 11.5 38.00 11.90 5.00 - 1-2" NPT

MTH 63 8 NPT 8.0 38.00 11.90 5.00 2_1/2"-3" NPT -

• For cutting speed recommendations, see page 435
(1) Threads per inch
(2) Internal thread designation
(3) External thread designation
(4) Thread pitch
For tools, see pages: MTSRH (endmills) (418) • MTSRH (helical shell mill) (418)

MTH-NPTF (int. & ext.) TP
External & Internal NPTF Helical W1
Thread Milling Inserts for
Steam, Gas and Water Pipes lNSL

S1

TP NUT Dimensions

55°

RE=0.137TP IC908
SCREW

Designation TPI(1) INSL W1 S1 THID(2) THOD(3)

MTH 23 11.5 NPTF 11.5 27.00 8.00 3.50 1"-2" NPTF 1"-2" NPTF

MTH 32 11.5 NPTF 11.5 32.00 9.00 4.00 1_1/4"-2" NPTF 1"-2" NPTF

• For cutting speed recommendations, see page 435
(1) Threads per inch
(2) Internal thread designation
(3) External thread designation
(4) Thread pitch
For tools, see pages: MTSRH (endmills) (418) • MTSRH (helical shell mill) (418)

432 ISCAR