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Core Drill Bits

A core drill bit is a hollow, cylindrical cutting accessory used with a core drilling machine to create large, clean holes in tough materials such as concrete, masonry, stone and brick.

Unlike a standard drill bit, a core drill bit cuts around the edge of the hole, leaving a solid centre section inside the bit. This centre section is known as the core, or sometimes the slug.

Core drill bits are commonly used by plumbers, electricians and HVAC installers to create openings for cables, vents, ducts and pipework through walls, floors and other surfaces.

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  1. Bore Diameter
    42 mm
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Fitting Type
  1. M18 x 6 P1.5 1 item
  2. QuickIN 4 items
  3. 3/4” Weldon 6 items
Maximum Cutting Depth
  1. 25mm 3 items
  2. 35mm 2 items
  3. 50mm 6 items
Bore Diameter
  1. 12 mm 13 items
  2. 13 mm 13 items
  3. 14 mm 16 items
  4. 15 mm 15 items
  5. 15.5 mm 2 items
  6. 16 mm 16 items
  7. 17 mm 15 items
  8. 17.5 mm 3 items
  9. 18 mm 18 items
  10. 19 mm 17 items
  11. 19.5 mm 2 items
  12. 20 mm 19 items
  13. 21 mm 19 items
  14. 22 mm 20 items
  15. 23 mm 18 items
  16. 24 mm 20 items
  17. 25 mm 19 items
  18. 26 mm 20 items
  19. 26.5 mm 2 items
  20. 27 mm 18 items
  21. 28 mm 20 items
  22. 29 mm 17 items
  23. 30 mm 20 items
  24. 31 mm 12 items
  25. 32 mm 18 items
  26. 33 mm 12 items
  27. 34 mm 12 items
  28. 35 mm 17 items
  29. 36 mm 17 items
  30. 37 mm 12 items
  31. 38 mm 11 items
  32. 39 mm 11 items
  33. 40 mm 16 items
  34. 41 mm 11 items
  35. 42 mm 11 items
  36. 43 mm 12 items
  37. 44 mm 12 items
  38. 45 mm 17 items
  39. 46 mm 12 items
  40. 47 mm 12 items
  41. 48 mm 12 items
  42. 49 mm 12 items
  43. 50 mm 18 items
  44. 51 mm 9 items
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  48. 55 mm 12 items
  49. 56 mm 9 items
  50. 57 mm 9 items
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  52. 59 mm 9 items
  53. 60 mm 12 items
  54. 61 mm 4 items
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  58. 65 mm 6 items
  59. 66 mm 1 item
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  73. 80 mm 1 item
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