BBC55 Retractable Roller Cone Rock Head
This patented head boasts major cutting ability up to 15,000psi rock! Versatility and simplicity are a must, thats why the BBC55 opens and closes via cam shaft, and can be used with slip O-ring Hex Auger. Combined with durability and versatility, this BBC55 Heavy Duty Cutting Head is sure to tackle any job you put in front of it!
HEX (“) | HEAD SIZE (DIA.) | CLOSED | OPEN |
---|---|---|---|
2-1/4″ (57.2MM) | 20″/508MM | 16.50″ | 21.50″ |
2-1/4″ (57.2MM) | 22″/559MM | 18.50″ | 23.50″ |
2-1/4″ (57.2MM) | 24″/610MM | 20.50 | 25.50″ |
3″ (76.2MM) | 20″/508MM | 16.50″ | 21.50″ |
3″ (76.2MM) | 22″/559MM | 18.50″ | 23.50″ |
3″ (76.2MM) | 24″/610MM | 20.50″ | 25.50″ |
3″ (76.2MM) | 26″/660MM | 22.50″ | 27.50″ |
3″ (76.2MM) | 28″/711MM | 24.50″ | 29.50″ |
3″ (76.2MM) | 30″/762MM | 26.50″ | 31.50″ |
3″ (76.2MM) | 32″/813MM | 28.50″ | 33.50″ |
3″ (76.2MM) | 34″/864MM | 30.50″ | 35.50″ |
3″ (76.2MM) | 36″/914MM | 32.50″ | 37.50″ |
3″ (76.2MM) | 38″/965MM | 34.50″ | 39.50″ |
3″ (76.2MM) | 40″/1016MM | 36.50″ | 41.50″ |
3″ (76.2MM) | 42″/1067MM | 38.50″ | 43.50″ |
3″ (76.2MM) | 44″/1118MM | 40.50″ | 45.50″ |
3″ (76.2MM) | 46″/1168MM | 42.50″ | 47.50″ |
3″ (76.2MM) | 48″/1219MM | 44.50″ | 49.50″ |
4″ (101.6MM) | 20″/508MM | 16.50″ | 21.50″ |
4″ (101.6MM) | 24″/610MM | 20.50″ | 25.50″ |
4″ (101.6MM) | 26″/660MM | 22.50″ | 27.50″ |
4″ (101.6MM) | 28″/711MM | 24.50″ | 29.50″ |
4″ (101.6MM) | 30″/762MM | 26.50″ | 31.50″ |
4″ (101.6MM) | 32″/813MM | 28.50″ | 33.50″ |
4″ (101.6MM) | 34″/864MM | 30.00″ | 35.50″ |
4″ (101.6MM) | 36″/914MM | 32.50″ | 37.50″ |
4″ (101.6MM) | 38″/965MM | 34.50″ | 39.50″ |
4″ (101.6MM) | 40″/1016MM | 36.50″ | 41.50″ |
4″ (101.6MM) | 42″/1067MM | 38.50″ | 43.50″ |
4″ (101.6MM) | 44″/1118MM | 40.50″ | 45.50″ |
4″ (101.6MM) | 46″/1168MM | 42.50″ | 47.50″ |
4″ (101.6MM) | 48″/1219MM | 44.50″ | 49.50″ |
4″ (101.6MM) | 54″/1372MM | 50.50″ | 55.50″ |
4″ (101.6MM) | 60″/1524MM | 56.50″ | 61.50″ |
4″ (101.6MM) | 66″/1676MM | 62.50″ | 67.50″ |
4″ (101.6MM) | 72″/1831MM | 68.50″ | 73.50″ |
5″ (127MM) | 24″/610MM | 20.50″ | 25.50″ |
5″ (127MM) | 26″/660MM | 22.50″ | 27.50″ |
5″ (127MM) | 28″/711MM | 24.50″ | 29.50″ |
5″ (127MM) | 30″/762MM | 26.50″ | 31.50″ |
5″ (127MM) | 32″/813MM | 28.50″ | 33.50″ |
5″ (127MM) | 34″/864MM | 30.50″ | 35.50″ |
5″ (127MM) | 36″/914MM | 32.50″ | 37.50″ |
5″ (127MM) | 38″/965MM | 34.50″ | 39.50″ |
5″ (127MM) | 40″/1016MM | 36.50″ | 41.50″ |
5″ (127MM) | 42″/1067MM | 38.50″ | 43.50″ |
5″ (127MM) | 44″/1118MM | 40.50″ | 45.50″ |
5″ (127MM) | 46″/1168MM | 42.50″ | 47.50″ |
5″ (127MM) | 48″/ 1219MM | 44.50″ | 49.50″ |
5″ (127MM) | 54″/1372MM | 50.50″ | 55.50″ |
5″ (127MM) | 60″/1524MM | 56.50″ | 61.50″ |
5″ (127MM) | 66″/1676MM | 62.50″ | 67.50″ |
5″ (127MM) | 72″/1831MM | 78.50″ | 73.50″ |