APEXX CNC Blind-Hole Bit – 3/4 in., Blind Hole
APEXX CNC Blind-Hole Bit – 3/4 in., Blind Hole
The APEXX CNC Blind-Hole Bit is a non-coring drilling tool that grinds a flat-bottomed blind pocket in stone, listed here at 3/4 in. on a 1/2 in. gas thread with a medium-soft metal bond, run wet. It does not core: it produces no slug, which is why the manufacturer keeps the blind-hole bits as a separate line from the core bits.
If the job needs a through hole with a slug removed — a faucet hole, a cable pass-through — a core bit is the tool, not this. A blind-hole bit is for pockets that stop part-way through the material, such as hardware and fixing recesses.
Key Features
- Blind-hole, non-coring: grinds a flat-bottomed pocket and leaves no slug
- 3/4 in. diameter (20 mm on the manufacturer's ladder)
- 1/2 in. gas thread
- Medium-soft metal bond for drilling speed and life
- Wet use only
- Sold as one bit
What's Included
- 1 blind-hole bit
Who Is This For?
CNC shops cutting hardware pockets, undermount fixings and other blind recesses in engineered stone and granite. Anyone needing a full through hole should be ordering a core bit instead.
Frequently Asked Questions
What is the difference between a blind-hole bit and a core bit?
A blind-hole bit grinds a flat-bottomed pocket and produces no slug; a core bit cuts a ring and leaves a slug that drops out, making a through hole. They are different tools for different jobs.
What thread does this bit take?
A 1/2 in. gas thread, which is standard across the APEXX CNC blind-hole line.
Can this bit be run dry?
No. The APEXX CNC blind-hole bits are specified for wet use.
What diameter is this bit?
This listing is the 3/4 in. size, which is 20 mm on the manufacturer's published diameter ladder. The size on this listing comes from the store record rather than from a manufacturer part-number table, so confirm the diameter with the supplier if it is critical.
Is there a smaller size in the catalogue?
Yes — the APEXX CNC Blind-Hole Bit is also stocked at 1/4 in. (6.5 mm) on the same 1/2 gas thread.