ORIXTREME Wet Diamond Core Drill Bit, 46 mm

A clean opening in concrete or masonry takes the right core bit—and a bit designed for dry drilling is not the match for this job. The ORIXTREME wet diamond core drill bit is made for wet coring in materials including reinforced concrete, brick, block, asphalt, and stone, with a 46 mm diameter and a 14-inch/355 mm drilling depth. Its 1-1/4"-7 thread is another key part of the fit, so check that against your core drill before choosing it.

Water is part of the setup, not an optional extra: this bit is for wet drilling only.

Fit and sizing

The 46 mm diameter suits jobs that call for a core opening of that size, while the listed drilling depth is 14 inches/355 mm. The bit uses a 1-1/4"-7 thread and is recommended for compatible handheld core drills or dedicated core drilling rigs. Those details matter as much as the cutting material, a bit that fits the hole size but not the drill connection won’t be a practical choice. If you can’t confirm your drill’s thread, selecting one without that measurement risks a mismatch.

For a pipe opening through masonry, for example, the intended process is to start perpendicular to the surface and keep steady pressure as the bit advances. Water cools the diamond cutting surface and carries away drilling debris, helping support the coring process. The chip-removal holes and concentric barrel are also designed to help clear debris and maintain stable drilling.

Pros

The main advantage is its clear focus: wet coring through demanding construction materials rather than general-purpose drilling. Brazed industrial diamond segments are specified for reinforced concrete and other compatible materials, including brick, masonry, asphalt, and stone. That makes the bit relevant to projects such as openings for pipes or air conditioners, as well as construction work involving stair railings.

You’ll appreciate it if your job calls for a 46 mm core and your drill matches the 1-1/4"-7 connection. It may not suit you if you need a dry-drilling bit, a different opening size, or a connection your equipment can’t accept. Compared with a basic masonry bit, this is a dedicated coring approach, the tradeoff is that it requires a compatible core drill and a wet setup, not just a standard drill and a quick pass through the wall.

Spec sheet

• Type: Wet diamond core drill bit
• Diameter: 1-3/4 inches (46 mm)
• Drilling depth: 14 inches (355 mm)
• Thread: 1-1/4"-7
• Cutting segments: Brazed diamond
• Intended materials: Concrete, reinforced concrete, brick, masonry, asphalt, and stone
• Use: Wet drilling only

When it makes sense

This bit is worth considering when you need a 46 mm core in a listed construction material, have a compatible handheld core drill or dedicated rig, and can supply water throughout drilling. Its stated depth and thread give you concrete criteria to compare with the job and your equipment. For a small, shallow hole or work that must be done dry, a different type of bit is a more sensible direction. The deciding question is whether your setup supports wet core drilling and the specified connection—not just whether the diameter looks right.