Specification Brand : CALIDAKA BulletPoint1 : Compact power --- this mini straight air die grinder glides through surfaces with a free air speed of 65,000 rpm and working air pressure of 90 psi in conjunction with an air compressor. Small size and light weight, pen-shaped design is easy to use with one hand. BulletPoint2 : Design --- made of metal material, durable, wear-resistant and never rust. Great tool for the model maker, professional and practical. High speed rotating to enhance the working efficiency, providing a smooth work. BulletPoint3 : Versatile --- can be applied in various metal cleaning, chamfering, grinding, engraving, internal processing. Also can be used in cutting, grinding and grinding of plastic, stone, wood and so on.Widely used in ironwork, carpentry, tire industry surface treatment, shipbuilding industry etc. BulletPoint4 : Lightweight --- with a pencil style shaft, this micro die grinder offers control and maneuverability when cutting, grinding and polishing surfaces. BulletPoint5 : Specifications --- air inlet: 1/4 inch.Average air consumption: 90 psi.Disk diameter: about 3 mm.No-load speed: 65000 rpm.Recommended tracheal diameter: about 8 mm. package included:1 pc x micro grinder.1 pc x 60 inch hose.2 pcs x chuck wrenches.1 pc x coupler.1 pc x manual. Color : Silver ExternallyAssignedProductIdentifier : 6942090350334 ExternallyAssignedProductIdentifier1 : 695924531701 ExternallyAssignedProductIdentifier2 : 0695924531701 ItemName : CALIDAKA Air-powered Micro Die Grinder Set 65,000 RPM Pneumatic Pencil with Wrench Grinder Tool for Cleaning Dies, Rotors, Backing Plates, Brake Pads, Mounts (90 PSI) ItemPackageDimensions_Height : 20.4978 centimeters ItemPackageDimensions_Length : 3.302 centimeters ItemPackageDimensions_Width : 13.4874 centimeters ItemTypeKeyword : power-die-grinders Manufacturer : CALIDAKA Material : Metal MaximumRotationalSpeed : 65000 rpm ModelNumber : 16284943998605 PartNumber : 16284943998605 PowerSourceType : Air Powered ProductDescription : 1/4 inch Micro Pneumatic Air Pencil Die Grinder Kit Pencil Style 52000 RPM 3mm Capacity,Engraving Tool Air Micro Grinder, Pneumatic Pencil Die Grinder 90psi 1/8'' Air Micro Grinder Kit Mini Pencil Polishing Rotray Cutting Tool Kit Micro Air-powered Grinder Air-Powered Micro Die Grinder Set Pneumatic Pencil Grinder Tool Features: High speed rotating to enhance the working efficiency, providing a smooth work. Small size and light weight, pen-shaped design is easy to use with one hand. Can be applied in various metal cleaning, chamfering, grinding, engraving, internal processing. Also can be used in cutting, grinding and grinding of plastic, stone, wood and so on. Made of metal material, durable, wear-resistant and never rust. Great tool for the model maker, professional and practical. Widely used in ironwork, carpentry, tire industry surface treatment, shipbuilding industry etc. Specifications: Material: Metal Color: As Picture Shown Air inlet: 1/4 inch Average air consumption: 90 PSI Disk diameter: about 3 mm No-load speed: 65000 rpm Recommended tracheal diameter: about 8 mm Package included: 1 Pc x Micro Grinder 1 Pc x 60 inch Hose 2 Pcs x Chuck Wrenches 1 Pc x Coupler 1 Pc x Manual