I'm going to ask because it seems like so many of us overlook this angle of attack...Was there a reason that you couldn't cut the staple of the hasp. I see a lot of locksmiths that spend valuable time trying to grind or drill expensive high security padlocks. You get it open and wind up with a customer that thinks, "I could have ruined the lock myself why did I just waste the money on a locksmith and now I have to buy a new lock."
I don't know what folks are like outside the US but all too often I find high dollar locks hanging off $2 (or cheaper) hasps. If I can cut the hasp I generally have an easy sale on a better quality hasp and I offer the customer a loaner padlock so I can take their lock home and either pick it or impression it at my leisure. I usually only charge them a service call and the cost of impressioning a key for calls like this.
If they've actually got a quality hasp you've just found out why its good to have more than one entry method in your bag.
Impressioning, Bump Keys and jigglers are all good things to try before you reach for the power tools if you can't pick it open. I'm as guilty as any of us of getting focused on one method and being frustrated when it doesn't work. Remember the job is opening the lock, you don't always have to pick it.
. It had a removable core so tried drilling it but to no avail as it has anti drill protection and also wouldnt shim. Thankfully i had access to power for the trusty angle grinder. http://www.chubblocks.co.uk/howto_outbuildings3.html
