The NSK Planet 2000 is an energy saving mechanism usable with a compact air compressor of 0.4 kw (1/2 HP). This high-speed jig grinder provides excellent performance for a relatively low cost. System has the ability to turn a milling machine, etc. into a jig grinding machine by simply attaching a boring head. If mounted on a lathe, this grinder can be used as a precision internal grinder. Planet 2000 is most suitable for internal grinding of extremely small holes, ceramic, cemented carbide alloy, etc. due to the high-speed rotation.Processable Range• Processable Diameter: ø0.02" - ø0.20"• Processable Depth: 0.31"• Max. Grindstone Diameter: ø0.08"Specifications• Speed: 180,000 - 200,000 rpm• Collet: 1/16" (1.6mm) max. • Proper Air Pressure: 29-42PSI• Air Consumption: 1.59CFM (42PSI)• Weight: 7.05 oz.• Hose: Intake Air ø6.0 mm (O.D.) - 6 ft., • Shank: ø1/2" x 1.06"Included Equipment• Collet Chuck ø1.6 mm (CH20-1.6): 1 pc.• Grindstone Arbor for Special Purpose (ø1.0 mm, ø1.4 mm): 1 pc. each• Grindstone with Arbor (ø1.6 mm): 3 pcs.• Intake Air Hose (K-259): ø6 mm x 6 ft.• Anti-swivel Bar• Wrench (K-220): 1 pc.• Filter Joint (FJ-01)