Hello Guys 
I have few questions for the A4982 driver.
So, I need to control unipolar stepper(six wires) see on image.
For the A4982 it says up to 2 amp. Stepper is 1.3 A/ph (coil).
So is it possible to use A4982 for microstepping.
If any body have experience or know any better driver.
Thanks for help.
It should work well. For wiring, you can try following the instructions for a similar driver chip &board here http://www.pololu.com/product/2128
Great ! 
. Thank you.
Going to buy a few and play a little , making a small DIY CNC mill, so that seems okay for the price and my needs!
Something to consider for a six-wire stepper, connected as bipolar with the two halves of each winding in series, is that you need twice the rated supply voltage in order to get the full rated current (1.3 amps) through the windings. Otherwise your torque will suffer. With those drivers you can use up to 35 volts for the motor power supply, although to be safe you should derate that a bit. I suggest a 24 volt, 2 (or more) amp supply for one motor.
Yes, I was planning to use 24V power supply, and lots of Amps!
Thanks.
It won't use lots of amps! The driver is a buck-converter and the motor windings take only 1.3A. It'll need about 0.3 to 1A in practice
But i going to have three stepper motors , and three A4982 drivers of course , and I thing that 5-10 A power supply would be great.