Every time I wanted to flash the firmware on an HC-05 / HC-06 I ended up soldering temporary wires to the SPI Pads and once I'd finished programming, removing them. Thankfully now I don't have to! This holder gives you access to the 4 SPI pins along the bottom plus the VCC and GND on the left hand side.
I used some standard single core breadboard / jumper wire. I believe its 22AWG. Stranded wire is not worth trying.
Holding the chip in place
I've used both elastic bands and blu tack with success.
Clearing the holes
After the print I used a pin to clear any debris and smooth them out.