® Mill-Thread Solid Carbide BSPT Same Tool for Internal and External Thread Grade P M K N S H MT7      PitchTPI Standard Ordering Code d D No. ofFlutes I L 28 RC1/16-1/8 MT 0606 C9 28 BSPT 6 6.0 3 9.5 58 19 RC1/4-3/8 MT 0808 C14 19 BSPT 8 8.0 3 14.0 64 14 RC1/2-7/8 MT 1212 D19 14 BSPT 12 12.0 4 19.1 84 11 RC1-2 MT 1616 D28 11 BSPT 16 16.0 4 28.9 105 Order example: MT 1616 D28 11 BSPT MT7 For thread mills with coolant through the flutes see next page For conical preparation end mills see page B08-23 BSPT With internal coolant bore Same Tool for Internal and External Thread Grade P M K N S H MT7      ≤ 47 HRc PitchTPI Standard Ordering Code d D No. ofFlutes I L 28 RC1/8 MTB 08078 C14 28 BSPT 8 7.8 3 14.1 64 19 RC1/4-3/8 MTB 1010 D16 19 BSPT 10 10.0 4 16.7 73 14 RC1/2-7/8 MTB 1616 E26 14 BSPT 16 16.0 5 26.3 105 11 RC1-2 MTB 1616 D28 11 BSPT 16 16.0 4 28.9 105 Order example: MTB 08078 C14 28 BSPT MT7 First choice Alternative B08-18