Zenesis Z-Thin Wall Core Bit – 4 in., 5/8 in.-11, Wet Only
Zenesis Z-Thin Wall Core Bit – 4 in., 5/8 in.-11, Wet Only
The Zenesis Z-Thin Wall Core Bit is a 4 in. wet-use diamond core bit with a continuous thin rim for drilling clean, low-chip holes in porcelain, granite, engineered stone, marble and Dekton on an angle grinder.
The continuous rim is what separates this bit from a segmented core bit: there are no gaps to catch the glaze on porcelain or the edge of a thin panel, so the hole breaks out with less chipping and blowout. Zenesis rates this line for wet use only. If you need to drill dry, or you are working quartzite, the Zenesis Obsidian Core Bit is the wet-or-dry bit in the same range.
Key Features
- 4 in. drilling diameter
- 5/8 in.-11 thread for angle grinders and polishers
- Continuous thin rim, 9.5 mm segment height
- Wrench flats on the barrel for easy removal
- Wet use only
- Zenesis materials: engineered stone, marble, granite, porcelain (pavers, floor tile and panels), clay and saltillo, travertine, glass, sintered stone; Dekton approved
- One of 13 sizes in the line, from 3/4 in. to 4-3/4 in.
Not Recommended For
Dry drilling. Zenesis publishes this bit for wet use only; run dry, a thin continuous rim overheats and loses its diamond. For dry or wet drilling in the same materials, and for dense quartzite, use the Zenesis Obsidian Core Bit – 1-3/8 in., 5/8 in.-11, Wet or Dry, for Quartzite & Porcelain, or another size in that line.
Who Is This For?
Countertop fabricators and tile installers drilling faucet, fixture and pipe holes in porcelain slab and tile, engineered stone and granite with water on the cut, who need a clean edge on the hole rather than the fastest possible dry hole.
Frequently Asked Questions
What thread does this core bit use?
5/8 in.-11, the standard thread on angle grinders and stone polishers.
Can I run it dry?
No. Zenesis rates the Z-Thin Wall line for wet use only. For dry drilling use the Zenesis Obsidian Core Bit, which is rated wet or dry.
Will it drill porcelain and Dekton?
Yes. Zenesis lists porcelain pavers, floor tile and panels, sintered stone and Dekton (approved) among its materials, alongside granite, marble and engineered stone.
How deep can it drill?
The rim is 9.5 mm tall; Zenesis does not publish a usable barrel depth for this line, so it is not stated here.
How do I get the bit off the grinder?
The barrel carries wrench flats, so a spanner takes it off without prying at the rim.