NTN Deep Groove Ball Bearings 6016ZZC3, D=80 Insulated Precision Screwdriver Set Cutting Capacity (CR SS): 24 28 Size:winter ear muffs(standardType) black (x10 pack) Cutting Capacity (CR SS): 24 28 100 % compatible with the Wiha slimBit system Bore Type Round Bore Diameter 80 mm Outside Diameter 125 mm Overall Width 22 mm Closure Type Double Shielded Row Type & Fill Slot Single Row Non Fill Slot Snap Ring Included Without Snap Ring Internal Clearance CN Operating Temperature Range 40 to 250 ºF Cage Type Pressed Dynamic Load Capacity 11910 lbf Static Load Capacity 9000 lbf Precision Rating ISO Class 0 Seal Type None Finish Coating Uncoated Bearing Material High Carbon Chrome Steel Cage Material Steel Inner Ring Width 0 89 lbs Harmonization Code 8482