Like Paul said... the right tool for the right filter...
all the ones I've seen fit on a socket wrench...
Suzuki has one size, some of the other mfrs have other sizes...
FWIW, I know from personal experience the Suzuki OEM filter and the HiFlo brand filter are the same wrench....
For example:
The Per-form filters are a different size...
Dale sells a strap type wrench for those...
Here's all the oil filters for the Bandit...
Suzuki 16510-06B01
STP SMO-18
HiFlo HF138
Amsoil SMF109
K&N KN-138
Wix 51359
NAPA Gold 1359 (same as WIX 51359)
Perf-Form J-509
Purolator ML6818/ML16818
Fram PH6018 (not a good filter)