PBC Linear CCPDL12 030.000 Pre Drilled Linear Shaft, Ceramic Coated Aluminum, 3 4 in Dia, 30 in Lg 2GED4 Lined Bearings Surface Roughness 8 12 Lined Bearings Surface Roughness 8 12 RMS System of Measurement Metric Shaft Hole Spacing 120 mm Shaft Drilling Pre Drilled Shaft Material Finish Polished Product Type Linear Shaft Shaft Material Grade 440 Standards ISO Shaft Material Stainless Steel Shaft End to Hole 60 mm Surface Hardness Minimum 60 HRC Weight Per Meter 0 Touchscreen Compatible Silicone Free No Palm Style Single Layer Includes Padded Palm No Glove Safety Features Adjustable Thermoplastic Rubber (TPR) closure creates a secure fit to your wrist Material Aluminum Alloy Linear Shaft