3" Wet Diamond Core Drill Bit for 2" Drain Pipe in Reinforced Concrete, Cuts Rebar, 1-1/4"-7 Thread, 18" Barrel for Core Rigs - CrownForce
3" Wet Diamond Core Drill Bit for 2" Drain Pipe in Reinforced Concrete, Cuts Rebar, 1-1/4"-7 Thread, 18" Barrel for Core Rigs - CrownForce
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Cores through structural concrete. Rebar included.
The CrownForce CF-EC-77 is a rig-mounted wet core bit for the jobs that stop dry and carbide bits: cured structural concrete with rebar in it. The 3" (77mm) size passes a 2" drain line (2.375" outside diameter) with room to seal around it.
Built for rig work▼
- Rebar-rated laser-welded segments. Cuts through embedded rebar without stripping segments. Dry and carbide masonry bits aren't built for rebar. This one goes through it.
- 18" (460mm) barrel. Cores thick slabs, footings, and foundation walls in one setup.
- 1-1/4"-7 thread. The standard US core rig thread. Fits Husqvarna, BLUEROCK, VEVOR, and other 1-1/4"-7 rigs. Hilti rigs need a 1-1/4"-7 adapter.
- Wet only. Water keeps the segments cool and flushes slurry for a fast, straight core.
Specs▼
| SKU | CF-EC-77 |
| Diameter | 3" (77mm) |
| Barrel length | 18" (460mm) |
| Thread | 1-1/4"-7 female (standard US rig) |
| Segments | Laser-welded, rebar-rated |
| Use | Wet only, rig-mounted |
| Materials | Cured concrete, reinforced concrete, hard masonry, stone |
Common jobs for this bit▼
2" drain and vent lines through concrete floors and foundation walls. 2" conduit. Mini-split line sets through concrete and block walls. When the plumber says "core me a three inch," this is the bit.
Before you drill▼
- Scan elevated slabs first. Elevated and post-tensioned slabs can carry tensioned steel cables. Have the slab scanned (GPR or X-ray) before coring.
- Foundation wall sleeves. If your inspector wants a full 3" sleeve through a foundation wall, you'll need a 4" core. See the 4" bit below.
Bigger pipe?▼
See the CrownForce 4" wet core bit for 3" drain lines and sleeved 2" penetrations.
CrownForce Industries. Factory-direct diamond tools. We own our factory, so every tool is built right and priced fair. This is a consumable you'll reorder. We make sure the second one cuts like the first.
