Dual Wall Standard Bit
A Dual Wall bit offering front or side flush, with flush ports that can be closed using a supplied hex-socket screw.
This bit offers optional front or side flush. The flush ports can be closed using a hex-socket screw supplied with the bit. For extended hard-rock drilling, switching to the Hard Rock bit is recommended. The flush design, which uses the Dual Wall CoreBarrel's annular space, prevents fine material from being washed out of the sample in mixed formations, giving a more representative core.
| Application Area (side flush) | All ground up to soft rock, including consolidated/dense materials |
|---|---|
| Application Area (front flush) | Dense and consolidated ground, up to medium-hardness rock |
| Button Type | Dome buttons |
| Overcut Use | Yes |
| Water Channels | None |
| Wear Protection Buttons | None |
| Inner Cutting Buttons | None |
| Water Flush | Yes, adjustable: front, side or both |
| Models | CB68 (Ø101/62 mm), CB3½ (Ø125/88 mm), CB5 (Ø176/119 mm, on request) |
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