Called on as Tasmania's first-choice spinner during the 2017 JLT One-Day Cup, Boyce was the Tigers' most prominent bowler, capturing 10 wickets in six matches at an average of 29.7.
Boyce will be looking to transfer that form into the longer formats this summer and establish himself as the number one slow bowler in the state.
He has represented Australia in seven T20 Internationals and has played 48 first-class matches. Boyce will also play for the Hobart Hurricanes this summer.
Right Arm Leg-Spin