21 Piece 1/4" Drive 6 Point Metric Chrome Socket Set Pry Bars Use with putting compressed air

Use with putting compressed air into the spark plug hole to hold up valves

Manual power on/off

Handles pistons 2 3/4" to 5" diameter

Heat treated for durability

21 Piece 1/4" Drive 6 Point Metric Chrome Socket Set Pry Bars Use with putting compressed air21 Piece 1 4" Drive 6 Point Metric Chrome Socket Set Features and Benefits: Manufactured from chrome vanadium steel for strength and durability Chrome finish resists against rust and corrosion All sockets are 6 point Push button ratchet has a knurled handle for extra grip Packaged in a blow molded case Includes 9 short sockets from 4mm to 11mm, 7 deep sockets from 5. 5mm to 11mm, push button ratchet, universal joint, 2" and 4" extensions and spinner.