Bank Draft
  
The bank manager opens the door and a breeze blows through past the cashiers to the safe.
The other kind of bank draft is a check which you can buy from a bank in order to pay someone who is not willing to accept your personal check. Typically, banks will review the bank draft requester's account to confirm that sufficient funds are available for the check to clear.
In that regard, a bank draft is guaranteed by the issuing bank, since it has been paid for prior to disbursement.
A bank draft is useful in the event of a transaction in which neither party is known to the other. With internet scams a big industry now, it is better to be safe than sorry.