Aluminum T Slot Miter Track 19mm and Sliding Nut

Material: Aluminum Alloy Measurement: Metric Size: Width: 19mm(3/4″), Length: Multiple Color: Original Aluminum Alloy, Blue Item Number of pre-drilled hole Hole Space (cm) Weight (g) 20cm 2 12 52 30cm 2 22 84 40cm 3 16 112 50cm 3 21 139 60cm 4 17.3-17.4-17.3 165 70cm 4 20.7-20.6-20.7 183 80cm 5 18 220 100cm 6 18.4 273 122cm 7 19 332