Determining an appropriate cellulosic based composite type for sustainable products is still challenging for both designers and the industry. Also, enhancing efficient high-quality joining techniques is still motivating the wide applications of composite materials as structural components. This work introduces a potential scheme of recycling accumulated waste copying papers into functional products via paper- epoxy reinforced composite material. Various cellulosic based copying papers were utilized as 15, 25 and 50 papers to fabricate paper/epoxy plate materials. The mechanical properties of the fabricated composites were investigated regarding the tensile strength, tensile modulus and elongation to break. The delamination factors for the drilling operation of the composites were studied and optimized to eliminate the exit (push-out delamination). The operational condition schemes were determined to reduce the delamination factor of the produced holes. Results have revealed that the 50 paper/epoxy composite shows the highest strength with a value of 86 MPa. However, the 25 paper/epoxy case was the best regarding the modulus of elasticity property. The worst delamination factor at 15 paper /epoxy composite occurred at both 6 mm drill diameter at 475 rpm spindle speed and 8 mm drill diameter at 850 rpm spindle speed. The 15 paper/epoxy delamination factor was decreased with increasing the spindle speed at 6 mm drill. The best delamination factor for the 25 paper/epoxy case was obtained with both 6 and 10 mm drill diameter at 1500 rpm spindle speed. However, the 50 paper/epoxy case was capable of reducing the delamination factor for most of the operational conditions.