A man used a hammer to smash a jewellers window and grab £5,500 worth of jewellery.
Damien Hough, 24, of no fixed address, pleaded guilty to burgling the Goldmine Jewellery shop, Waterloo Road, Blackpool.
He also admitted going equipped with a hammer to steal.
Chrissie Hunt, prosecuting, said a cleaner was working at the jewellers when there was a loud bang as a hammer smashed through the shop’s front display window on June 24, at 9.30am.
Hands then came through the window and snatched jewellery valued at £5,500 which was on display.
The cleaner immediately pushed the panic button and police were alerted.
Hough was identified from CCTV footage from a nearby shop.
Hough was committed in custody to Preston Crown Court for sentence on July 30 by Blackpool Magistrates Court.
Co-accused, Mark Turner, 28, of no fixed address, who is also charged with burgling Goldmine Jewellery and going equipped to steal with a hammer.
He did not indicate pleas to the offences and was committed in custody to appear at Preston Crown Court on July 23.