A Renewable Drill Bush of type B with bore d * 1 = 18 mm d * 2 = 28mm and L * 1 = 32mm shall be designated as Renewable Drill Bush B 18 * 28 * 32 IS: 666 (Part II) Slip renewable bushes of type B and type C can also be provided with entry groove. If entry groove is desired, the same shall be indicated in the designation as Renewable Drill Bush B (EG) 18 * 28 * 32 18/666 (Part III)
| d, G7 | d | d4 | d5 | d6 | f1 | L1 | L2 | L3 | L4 | m | n | r | Z1 | α | α | Locking | ||||
| over | upto | h6 | Short | Medium | Long | For I, medium |
for I, long |
Screw | ||||||||||||
| - | 2.65 | 8 | 15 | 12 | 3 | 8 | 12.5 | 0 | 4.5 | - | 5 | |||||||||
| 2.65 | 4.75 | 10 | 18 | 15 | 5 | 0.5 | 10 | 16 | 25 | 8 | 1 | 6 | 15 | 6.5 | 4.5 | 7 | 0.02 | 65° | 40° | M5 X 5 |
| 4.75 | 8.5 | 15 | 24 | 20 | 9 | 12.5 | 20 | 32 | 8 | 20 | 9 | |||||||||
| 8.5 | 14 | 22 | 32 | 28 | 14.5 | 0.8 | 16 | 25 | 40 | 10 | 1 | 9 | 24 | 13 | 5.5 | 9 | 0.03 | 50 | 30° | M6 X 6 |
| 14 | 19 | 28 | 40 | 36 | 20 | 17 | ||||||||||||||
| 19 | 25 | 35 | 50 | 46 | 26 | 1.2 | 20 | 32 | 50 | 12 | 1.5 | 12 | 30 | 22 | 7 | 30 | M6 X 7.5 | |||
| 25 | 33.5 | 46 | 60 | 50 | 35 | 26 | 0 | |||||||||||||
| 33.5 | 45 | 58 | 74 | 70 | 47 | 1.6 | 25 | 40 | 63 | 16 | 2 | 15 | 38 | 33 | 9.5 | 11.5 | 0.04 | 20° | 20° | M8 X 10 |
