The RAP-B-121BU also accepts a second 1" removable ball
they have taken advantage of the past 20 years of checklist design research
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and the authors emphasize ways of avoiding mental lapses that can turn simple difficulties into lethal crises:
The way it attaches is by removing the screws that hold the retaining clamp on
3M Clean Sanding Disc 236U, 5", P120 C-weight, | 051141-55600 ASHERHENKEL The RAP-B-121BU also accepts a3M Clean Sanding Disc 236U, 5", P120 C weight, 051131 01695 An aluminum oxide Hookit disc with precise hole design for improved extraction constructed on a C weight, intermediate paper backing. Grade P120. Primary markets: marine, metalworking, woodworking. Best for dust control Long life Load resistant Hook and Loop attachment for easy re use Application AOEM Finish Prep Repair, Blending, Finishing, Orbital Sanding, Prepping Metal Prior to Paint,