I found two which probably will work good with specified steppers.
2. Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit
Can u suggest me which is better? Thank you.
Neither, those are H-bridge motor controllers, you need a chopper-drive for that sort
of motor (it has very low impedance windings), and a high voltage supply (24 or more).
Chopper drives both do DC-DC conversion using the motor's windings as the inductance
and limit the average current to a set value in the process. This makes for a much faster
motor than you can get with high impedance windings, and such chopper drive ICs usually
provide microstepping (for much smoother operation, better holding at speed).
A lot of people use the A4988 drivers from Pololu
for this sort of motor, but they aren't quite up to handling 1.7A, though you can
run at lower current or add a small fan to cool the board.
Roughly speaking if the motor windings are in the 2 ohm or lower range, chopper
drive is required, if 10 ohms or more, probably an H-bridge will do (or if unipolar