Logging and strength tests were undertaken on drill cores from Sullivan Mine to assess the cutability of the coal measure strata. A number of rocks tested had strengths higher than the reputed capacity of the Joy Continuous Miner (< 55.2 MPa), but only one sample had a strength grreater than the reputed capability of the Dosco Dint Header (strength <82.7 Mpa). However, cutability may not be related to unconfined compressive strength directly, other factors such as cementation, indentation haardness, rebound hardness and rock defect soacing should also be considered.