Sonic Core Barrel Bits
Boart Longyear has an extensive array of bits for every type of ground condition and application.
Usage: Normal multipurpose operating conditions. Sizes 3.75" - 10.5" (95.25 mm - 266.7 mm)
Usage: Hard, dry, layered conditions (helps prevents sample refusal). Sizes 3.75" - 8" (95.25 mm - 203.2 mm)
Usage: Retains loose, soft sample - use in conjunction with steel basket core barrel bit. Sizes 3.75" - 7" (95.25 mm - 177.8 mm)
Usage: Dry formations. Sizes 3.75" - 6" (95.25 mm - 152.4 mm)
Usage: Moderately abrasive formations. Sizes 3.75" - 8" (95.25 mm - 203.2 mm)
Usage: Loose, soft formations - use in conjunction with plastic core basket. Sizes 4.75" - 6" (120.65 mm - 152.4 mm)
Usage: Loose, wet conditions. Sizes 3.75" - 6" (95.25 mm - 152.4 mm)
Usage: Severly abrasive formations. Sizes 3.75" - 8" (95.25 mm - 203.2 mm)
Usage: Retains loose, soft sample - use in conjunction with plastic basket core barrel bit. Sizes 4.75" - 6" (120.65 mm - 152.4 mm)
Usage: Hole clean-out in slurry conditions (rotation not recommended). Sizes 3.75" - 8" (95.25 mm - 203.2 mm)
Usage: Loose, soft formations - use in conjunction with steel core basket. Sizes 3.75" - 7" (95.25 mm - 177.8 mm)
Usage: Environmentally contaminated soils, when sample structure visibility and storage is required (Dry-drilled hole). Sizes 4.5 (114.3 mm)
Usage: Drill bore holes when no sample is required.
(can also be used in conjunction with the sandstone casing shoe). Sizes 4.75" - 6" (120.65 mm - 152.4 mm)