Professional 15 Piece 1/4" Air Die Grinder Kit This professional quality air tool set is ideal for grinding and polishing metal components.The air die grinder is well made, and has a 1/4" NPT collet and 1/4" NPT air inlet requiring a 3/8" hose (not supplied). The grinder has a safety trigger that requires a flick of the thumb to release before the handle can be operated, ideal for preventing accidental operation.There are also 10 mounted grinding stones with 1/4" shanks and 1/8" shanks. A collet is provided for use with the 1/8" shanks.Supplied complete in carrying case.Contents Air Die Grinder 5 mounted grinding stones, 1/4" diameter shanks 5 mounted grinding stones, 1/8" diameter shanks 1/8" collet 1/4" BSP nipple 2 spannersSpecification 1/4" NPT collet Safety trigger to prevent accidental operation 1/4" NPT air inlet Requires 3/8" hose (not supplied) Free speed 22,000 RPM Air pressure 90 PSI Air consumption 3 CFM Air tool length 17cm (6.75")RRP - 49.99