MK Crown Bits For Prestressed & Precast Concrete
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Professional grade crown rim core bits for prestressed and precast concrete.
| Diameter | Thread | Part # | |
| 1/2" | (13mm) | 5/8"-11 | 157009 |
| 1" | (25mm) | 5/8"-11 | 157010 |
| 1-1/8" | (29mm) | 5/8"-11 | 172959 |
| 1-1/4" | (32mm) | 5/8"-11 | 172960 |
| 1-3/8" | (35mm) | 5/8"-11 | 172961 |
| 1-1/2" | (38mm) | 5/8"-11 | 157011 |
| 1-5/8" | (41mm) | 5/8"-11 | 172962 |
| 1-3/4" | (44mm) | 5/8"-11 | 172963 |
| 1-7/8" | (48mm) | 5/8"-11 | 172964 |
| 2" | (51mm) | 1-1/4"-7 | 157793 |
| 2-1/2" | (63mm) | 1-1/4"-7 | 157794 |
| 2-3/4" | (70mm) | 1-1/4"-7 | 160305 |
| 3" | (76mm) | 1-1/4"-7 | 157795 |
| 3-1/2" | (89mm) | 1-1/4"-7 | 157796 |
| 4" | (102mm) | 1-1/4"-7 | 157797 |
| 4-1/2" | (114mm) | 1-1/4"-7 | 157798 |
| 5" | (127mm) | 1-1/4"-7 | 157799 |
| 6" | (152mm) | 1-1/4"-7 | 157800 |
| 8" | (293mm) | 1-1/4"-7 | 172965 |
| 10" | (254mm) | 1-1/4"-7 | 172966 |
| Segment Height | 7.5 mm | ||
| Drilling Depth | 14" | ||