Page 433 - ISCAR(MILLINGCATALOG 38_2021)

TP

MTH-UN (internal) W1
Helical Thread Milling Inserts
for American Full Profile Internal lNSL
Threads for General Applications

S1

NUT
TP Dimensions
TP/4
60° TP/8 THREAD MILLING TOOLS
SCREW
Designation TPI (1) INSL W1 S1 THID (2) TP (3) IC908
MTH 23 I 32 UN 32.0 27.00 8.00 3.50 ≥1" 0.794 •
MTH 23 I 24 UN 24.0 27.00 8.00 3.50 ≥1" 1.058 •
MTH 23 I 20 UN 20.0 27.00 8.00 3.50 ≥1" 1.270 •
MTH 23 I 18 UN 18.0 27.00 8.00 3.50 ≥1_1/16" 1.411 •
MTH 23 I 16 UN 16.0 27.00 8.00 3.50 ≥1_1/16" 1.588 •
MTH 23 I 14 UN 14.0 27.00 8.00 3.50 ≥1_1/8" 1.814 •
MTH 23 I 12 UN 12.0 27.00 8.00 3.50 ≥1_1/8" 2.117 •
MTH 23 I 10 UN 10.0 27.00 8.00 3.50 ≥1_1/8" 2.540 •
MTH 23 I 8 UN 8.0 27.00 8.00 3.50 ≥1_3/16" 3.175 •
MTH 23 I 7 UN 7.0 27.00 8.00 3.50 ≥1_1/4" 3.629 •
MTH 32 I 20 UN 20.0 32.00 9.00 4.00 ≥1_3/8" 1.270 •
MTH 32 I 18 UN 18.0 32.00 9.00 4.00 ≥1_3/8" 1.411 •
MTH 32 I 16 UN 16.0 32.00 9.00 4.00 ≥1_3/8" 1.588 •
MTH 32 I 12 UN 12.0 32.00 9.00 4.00 ≥1_7/16" 2.117 •
MTH 32 I 8 UN 8.0 32.00 9.00 4.00 ≥1_1/2" 3.175 •
MTH 32 I 6 UN 6.0 32.00 9.00 4.00 ≥1_5/8" 4.233 •
MTH 32 I 5 UN 5.0 32.00 9.00 4.00 ≥1_3/4" 5.080 •
MTH 45 I 16 UN 16.0 37.00 11.90 5.00 ≥2" 1.588 •
MTH 45 I 12 UN 12.0 37.00 11.90 5.00 ≥2" 2.117 •
MTH 45 I 8 UN 8.0 37.00 11.90 5.00 ≥2_1/4" 3.175 •
MTH 45 I 6 UN 6.0 37.00 11.90 5.00 ≥2_1/4" 4.233 •
MTH 45 I 4.5 UN 4.5 37.00 11.90 5.00 ≥2_1/4" 5.644 •
MTH 45 I 4 UN 4.0 37.00 11.90 5.00 ≥2_1/2" 6.350 •
MTH 63 I 16 UN 16.0 38.00 11.90 5.00 ≥2_3/4" 1.588 •
MTH 63 I 12 UN 12.0 38.00 11.90 5.00 ≥2_3/4" 2.117 •
MTH 63 I 8 UN 8.0 38.00 11.90 5.00 ≥3" 3.175 •
MTH 63 I 6 UN 6.0 38.00 11.90 5.00 ≥3" 4.233 •
MTH 63 I 4 UN 4.0 38.00 11.90 5.00 ≥3" 6.350 •
• Used for UN, UNC, UNF, UNEF and UNS thread profiles • For cutting speed recommendations, see page 435
(1) Threads per inch
(2) Internal thread designation
(3) Thread pitch
For tools, see pages: MTSRH (endmills) (418) • MTSRH (helical shell mill) (418)

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°
RE=0.137TP
SCREW
Designation TPI (1) INSL W1 S1 THID (2) THOD (3) TP (4) IC908
MTH 23 14 W 14.0 27.00 8.00 3.50 ≥G7/8" >G1/2" 1.814 •
MTH 23 11 W 11.0 27.00 8.00 3.50 ≥G1" >G1" 2.309 •
MTH 32 14 W 14.0 32.00 9.00 4.00 - ≥G1/2" 1.814 •
MTH 32 11 W 11.0 32.00 9.00 4.00 ≥G1_1/8" >G1" 2.309 •
MTH 45 11 W 11.0 37.00 11.90 5.00 ≥G1_3/4" >G1" 2.309 •
MTH 63 11 W 11.0 38.00 11.90 5.00 ≥G2_1/2" >G1" 2.309 •
• 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)

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