HANDY TAPPER SB-400C, SB-650C (CORD TYPE) SB-900F (RECHARGEABLE TYPE) THE HANDY TAPPER IS AN EFFECTIVE TOOL FOR TAPPING MATERIAL WITH STARTING HOLES DRILLED IN ADVANCE. THE HANDY TAPPER CAN FREELY ADJUST THE TAPPING DEPTH AND CAN AUTOMATICALLY RECONGNIZE OVERLOAD CONDITIONS TO PREVENT TAP DAMAGE. IT CAN ALSO BE USED FOR DRILLING. THE VERSION EQUIPPED WITH A CORD REQUEIRES A SPECIAL POWER SUPPLY (SBT-50).