® D-Thread D-Thread Mill-Thread Inserts & Toolholders for machining deep threads Insert Size No. of Insert Torx Ordering Code Y D D1 L1 L2 L I.C Inserts Screw Key *SR0015M11U 11U 1/4U 5 14.8 16 150 55 1 SE11 K11 **SR0021M11U 11U 1/4U 5 20.6 25 150 65 2 SE11 K11 SR0023M11U 11U 1/4U 5 23 25 150 88 3 SE11 K11 * Pitch limitations: for partial 60° - INT. - 10-9 TPI, EX. -12 - 10 TPI; for partial 55° - 12 - 9 TPI ** Pitch limitations: for partial 60° - INT. - 10-8 TPI, EX. -12 - 9 TPI; for partial 55° - 12 - 9 TPI Partial 60˚ Size 11U Partial 55˚ Size 11U Pitch Pitch Ordering Code Ordering Code mm TPI TPI INT. 2.5 - 4.0 10 - 6 11U 55D INT./EX. 12 - 7 11U 60D EX. 2.0 - 3.0 12 - 8 INT. 1.5 - 2.0 18 - 12 11U 60D-18-12 EX. 1.25 - 1.75 20 - 14 Coated Grade: BMA B05-3