Bit type
Two-way nail drill bits: cutting in forward and reverse
What a two-way (bidirectional) nail drill bit is, the Medicool example designed to cut both ways, and the drill feature it needs to be useful.
Also listed as bidirectional bit, two-way rotation bit
Short answer
A two-way bit is cut to work when the drill spins either way, so one bit serves forward and reverse. Medicool's 5-in-1 carbide bit (CC22) is designed to cut both clockwise and counter-clockwise, which Medicool markets for right- and left-handed techs. Your drill needs a reverse setting to use the second direction.
Key facts
- Cutting direction
- Both clockwise and counter-clockwise (Medicool CC22)[1]
- Material
- Carbide (Medicool CC22)[1]
- Typical use
- Marketed for right- and left-handed techs (Medicool)[1]
- Maker examples
- Medicool 5-in-1 carbide (CC22)[1]
- Fit caveats
- Needs a drill with forward/reverse[2][3]KUPA lists forward/reverse on the Passport NEXT and Medicool on the 35K Portable.
- What no source confirms
- Whether a two-way bit cuts equally well both ways[1]We found no measurement; the design claim is Medicool's.
Watch out for
- It only helps if your drill reverses. Check the drill lists forward/reverse; KUPA and Medicool do on the models we read.
- Listings may claim two-way rotation without the maker saying so. Prefer a statement on the bit maker's own page.
The alternative is a bit made in a separate left-hand version. See forward and reverse on a nail drill.