... ELECTRIC TOOLS. HT1010 SERIES ARE MULTI-SPEED TRIGGER SWITCHES WITH BY-PASS CONTACT, INTEGRATED DUSTPROOF, THE TRIGGER AND LEVER ... CAN ACCORDING TO CUSTOMER'S REQUIREMENTS.OPTIONAL WITH FUNCTIONS OR ACCESSORIES, AS FOLLOWS:FULL-WAVE SPEED CONTROL ... OPERATED ELECTRIC TOOLS,SUCH AS:DRILLS, IMPACT DRILLS, ROTARY HAMMERS, JUG SAWS, RECIPROCATING SAWS, SABRE SAWS, ELECTRIC MIXERS, POLISHERS, ...