Details:

- Includes nineteen pieces: SAE and Metric sets combined 

- Magnetic insert firmly holds the fastener in the socket for easy installation/removal. 

- Prevents fasteners from dropping into restricted areas where they can be difficult to locate and/or retrieve 

- Magnetic insert can be left in or removed for use in other sockets

- SAE sizes: 3/8in,7/16in,1/2in,9/16in,5/8in,11/16in,3/4in,13/16in,7/8in.

- Metric sizes: 10mm,11mm,12mm,13mm,14mm,15mm,16mm,17mm,18mm,19mm.