Page 374 - Iscar

THREAD MILLING TOOLS
P
MTH-W (int. & ext.) W
External & Internal Whitworth (BSW, l
BSF, BSP) Helical Thread Milling
Inserts for Fittings and Pipe Couplings
S
P NUT Dimensions

55°
R=0.137P
SCREW IC908
Designation TPI l W S Int Thrd Ext Thrd
MTH 23 14 W 14.0 27.00 8.00 3.50 ≥G7/8" >G1/2" •
MTH 23 11 W 11.0 27.00 8.00 3.50 ≥G1" >G1" •
MTH 32 14 W 14.0 32.00 9.00 4.00 ≥G1/2" •
MTH 32 11 W 11.0 32.00 9.00 4.00 ≥G1_1/8" >G1" •
MTH 45 11 W 11.0 37.00 11.90 5.00 ≥G1_3/4" >G1" •
MTH 63 11 W 11.0 38.00 11.90 5.00 ≥G2_1/2" >G1" •
• For cutting speed recommendations, see pages 372-373
For tools, see pages: MTSRH (endmills) (360) • MTSRH (helical shell mill) (361)

P
MTH-BSPT (int. & ext.) W
Helical External & Internal Thread l
Milling Inserts for BSPT Thread for
Steam, Gas and Water Pipes
S

P NUT Dimensions
27.5° 27.5°
R=0.137P
90° Taper 1:16
SCREW
BSPT IC908
Designation TPI l W S Int Thrd Ext Thrd
MTH 23 11 BSPT 11.0 27.00 8.00 3.50 >1" BSPT >1" BSPT •
MTH 32 11 BSPT 11.0 32.00 9.00 4.00 >1_1/8" BSPT >1" BSPT •
MTH 45 11 BSPT 11.0 37.00 11.90 5.00 >1_3/4" BSPT >1" BSPT •
MTH 63 11 BSPT 11.0 38.00 11.90 5.00 >2_1/2 BSPT >1" BSPT •
• For cutting speed recommendations, see pages 372-373
For tools, see pages: MTSRH (endmills) (360) • MTSRH (helical shell mill) (361)

P
MTH-NPT (int. & ext.) W
External & Internal NPT Helical l
Thread Milling Inserts for Steam,
Gas and Water Pipes
S

P NUT Dimensions
30° 30°

90° Taper 1:16
SCREW IC908
Designation TPI l W S Int Thrd Ext Thrd
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 pages 372-373
For tools, see pages: MTSRH (endmills) (360) • MTSRH (helical shell mill) (361)

370 ISCAR