P MTH-ISO (internal) W Helical Thread Milling Inserts for l ISO Metric Internal Threads S P NUT P/4 Dimensions 60˚ P/8 SCREW Designation l Pitch W S Int Thrd IC908 MTH 23 I 1.0 ISO 27.00 1.00 8.00 3.50 ≥M26 • MTH 23 I 1.5 ISO 27.00 1.50 8.00 3.50 ≥M27 • MTH 23 I 2.0 ISO 27.00 2.00 8.00 3.50 ≥M28 • MTH 23 I 3.0 ISO 27.00 3.00 8.00 3.50 ≥M30 • MTH 23 I 3.5 ISO 27.00 3.50 8.00 3.50 ≥M33 • MTH 23 I 4.0 ISO 27.00 4.00 8.00 3.50 ≥M36 • MTH 32 I 1.0 ISO 32.00 1.00 9.00 4.00 ≥M34 • MTH 32 I 1.5 ISO 32.00 1.50 9.00 4.00 ≥M35 • MTH 32 I 2.0 ISO 32.00 2.00 9.00 4.00 ≥M36 • THREAD MILLING TOOLS MTH 32 I 3.0 ISO 32.00 3.00 9.00 4.00 ≥M38 • MTH 32 I 3.5 ISO 32.00 3.50 9.00 4.00 - • MTH 32 I 4.0 ISO 32.00 4.00 9.00 4.00 ≥M40 • MTH 32 I 4.5 ISO 32.00 4.50 9.00 4.00 ≥M44 • MTH 32 I 5.0 ISO 32.00 5.00 9.00 4.00 ≥M48 • MTH 45 I 1.5 ISO 37.00 1.50 11.90 5.00 ≥M50 • MTH 45 I 2.0 ISO 37.00 2.00 11.90 5.00 ≥M50 • MTH 45 I 3.0 ISO 37.00 3.00 11.90 5.00 ≥M56 • MTH 45 I 3.5 ISO 37.00 3.50 11.90 5.00 - • MTH 45 I 4.0 ISO 37.00 4.00 11.90 5.00 ≥M56 • MTH 45 I 4.5 ISO 37.00 4.50 11.90 5.00 - • MTH 45 I 5.0 ISO 37.00 5.00 11.90 5.00 - • MTH 45 I 5.5 ISO 37.00 5.50 11.90 5.00 ≥M56 • MTH 45 I 6.0 ISO 37.00 6.00 11.90 5.00 ≥M64 • MTH 63 I 1.5 ISO 38.00 1.50 11.90 5.00 ≥M70 • MTH 63 I 2.0 ISO 38.00 2.00 11.90 5.00 ≥M70 • MTH 63 I 3.0 ISO 38.00 3.00 11.90 5.00 ≥M75 • MTH 63 I 4.0 ISO 38.00 4.00 11.90 5.00 ≥M75 • MTH 63 I 6.0 ISO 38.00 6.00 11.90 5.00 ≥M78 • • For cutting speed recommendations, see pages 372-373 For tools, see pages: MTSRH (endmills) (360) • MTSRH (helical shell mill) (361) P MTH-ISO (external) W Helical Thread Milling Inserts for l ISO Metric External Threads S P NUT P/4 Dimensions 60˚ P/8 SCREW Designation l Pitch W S Ext Thrd IC908 MTH 23 E 1.0 ISO 27.00 1.00 8.00 3.50 Ext. • MTH 23 E 1.5 ISO 27.00 1.50 8.00 3.50 Ext. • MTH 23 E 2.0 ISO 27.00 2.00 8.00 3.50 Ext. • MTH 23 E 3.0 ISO 27.00 3.00 8.00 3.50 Ext. • MTH 32 E 1.5 ISO 32.00 1.50 9.00 4.00 Ext. • MTH 32 E 2.0 ISO 32.00 2.00 9.00 4.00 Ext. • MTH 32 E 3.0 ISO 32.00 3.00 9.00 4.00 Ext. • MTH 32 E 4.0 ISO 32.00 4.00 9.00 4.00 Ext. • MTH 45 E 1.5 ISO 37.00 1.50 11.90 5.00 Ext. • MTH 45 E 2.0 ISO 37.00 2.00 11.90 5.00 Ext. • • For cutting speed recommendations, see pages 372-373 For tools, see pages: MTSRH (endmills) (360) • MTSRH (helical shell mill) (361) 368 ISCAR