Page 111 - MILLING_CATALOG_INCH_2022_P361-P592

TP
MTH-W (int. & ext.) W1
External & Internal Whitworth
(BSW, BSF, BSP) Helical lNSL
Thread Milling Inserts for
Fittings and Pipe Couplings
S1

TP NUT Dimensions

55° THREAD MILLING TOOLS
RE=0.137TP
SCREW
Designation TPI (1) INSL W1 S1 THID (2) THOD (3) TP mm (4) IC908
MTH 23 14 W 14.0 1.063 .315 .138 ≥G7/8" >G1/2" 1.814 •
MTH 23 11 W 11.0 1.063 .315 .138 ≥G1" >G1" 2.309 •
MTH 32 14 W 14.0 1.260 .354 .157 - ≥G1/2" 1.814 •
MTH 32 11 W 11.0 1.260 .354 .157 ≥G1_1/8" >G1" 2.309 •
MTH 45 11 W 11.0 1.457 .469 .197 ≥G1_3/4" >G1" 2.309 •
MTH 63 11 W 11.0 1.496 .469 .197 ≥G2_1/2" >G1" 2.309 •
• For cutting speed recommendations, see page 475
(1) Threads per inch
(2) Internal thread designation
(3) External thread designation
(4) Thread pitch
For tools, see pages: MTSRH (endmills) (456) • MTSRH (helical shell mill) (457)

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

S1

TP NUT
27.5° 27.5° Dimensions
RE=0.137TP
90° Taper 1:16
SCREW
BSPT
Designation TPI (1) INSL W1 S1 THID (2) THOD (3) TP mm (4) IC908
MTH 23 11 BSPT 11.0 1.063 .315 .138 >1" BSPT >1" BSPT 2.309 •
MTH 32 11 BSPT 11.0 1.260 .354 .157 >1_1/8" BSPT >1" BSPT 2.309 •
MTH 45 11 BSPT 11.0 1.457 .469 .197 >1_3/4" BSPT >1" BSPT 2.309 •
MTH 63 11 BSPT 11.0 1.496 .469 .197 >2_1/2 BSPT >1" BSPT 2.309 •
• For cutting speed recommendations, see page 475
(1) Threads per inch
(2) Internal thread designation
(3) External thread designation
(4) Thread pitch
For tools, see pages: MTSRH (endmills) (456) • MTSRH (helical shell mill) (457)

471