BEARING INSTALLATION TOOL ADAPTERS - 23-piece adapter set used to install 10mm+ ID sealed bearings. - Compatible with Press-1 and Press-4. -Includes the following adapters and spacers: 6802 Open Bore, 6802 Over Axle 20mm, 6901 Open Bore, 6901 Over Axle 40mm, 6902 Open Bore, 6902 Over Axle 7mm, 6903 Open Bore, 6903 Over Axle 7mm, 6000 Open Bore, 6000 Over Axle 6mm, 6001 Open Bore, 6001 Over Axle 7mm, 15-25mm spacer, 17-25mm spacer, 30mm spacer.