OCDT Clockwise Drive  > "Over Running Clutch Drive Tool" for a handheld 20V-1/2" drive cordless drill CW engine cranking = Electric Starting!  

DESIGNED FOR LEFT SIDE MAGNETO NUT CLOCKWISE CRANKING on less than 90cc displacement 2 stroke bicycle engines like with the Gt5BES or YuanDong SkyHawk Avenger 85.  DO NOT TRY CRANKING BIGGER ENGINES THAN 90cc. 

CW OCDT VERSION Cranks and Overruns in the Clockwise direction as viewed from the Cordless Drill end. 

Uneducated folks say using our OCDT tool and cordless drill does not give electric start.   Nonsense!!!  

In automotive applications a 12V Battery supplies DC electricity to a cranking motor ( "Starter" ) used to crank the engine for starting.    Said cranking motor has an overrunning clutch drive pinion.    When using a 20V cordless hand tool and our OCDT you have the exact same concept.  20V Battery, Motor and Over-Running Clutch Drive.  Hence ELECTRIC STARTING!  

DO NOT USE THIS CW OCDT TOOL For SkyHawk Gt5A-ES and SkyHawk Avenger 85 engines that require CCW crank on the right side.  

CW OCDT uses a 3/8" Drive hex socket for Left side engine cranking off the magneto nut.  

 OCDT design has a one-way needle bearing instead of a ball bearing.   Needle bearings provide a higher lock torque spec than do ball bearings yet provide a very smooth transition to overrun when the engine starts. 

 NOTE:   It has been brought to our attention by knowledgeable engine builders that there are cheaply made in China hand ratchet adapters on the market but they will soon break when the engine lights off.   Maybe good for a 1/2 dozen cranks then throw in the trash bin.   A ratchet does not work the same as the smooth operation of one-way bearing. 

 OCDT is an "Over Running Clutch Drive Tool" for starting engines with a 20V 1/2" / 13mm cordless drill or can use a standard wall plug in 1/2" 110V AC drill.    A 20V 1/2" cordless Impact wrenches can also be used if modified to eliminate the hammer affect.  

DO NOT USE A HAMMER DRILL or an Impact wrench unless they have been modified to eliminate the dual flapper hammer affect. 

Why use an OCDT?    If using a drill with just a Socket bit, you run the risk of damaging your drill not to mention possible self-injury.  

The OCDT ensures safe smooth start up when the engine fires up.  It does the same job as a starter drive in your car's 12V starter. 

The OCDT 10mm hex shank end allows using a M10 socket for use with special Modified 1/2" Impact or it can be chucked directly into a 20V 1/2" chuck CORDLESS DRILL.  

DON'T USE AN IMPACH WRENCH AS THE JACKHAMMER AFFECT CAN WILL DAMAGE THE ONE-WAY BEARING and also can damage 6202 engine bearings.  

Impact Wrench use:  If the jackhammer effect is eliminated by welding the 2 flappers inside the head so they cannot move it is perfectly alright to use a 1/2" drive impact wrench with a 10mm socket that is JB welded onto the 10mm hex shaft of the OCDT.   See pics.   

The power and RPM of a MODIFIED Cordless Electric Impact 1/2 drive wrench exceeds that of the cordless drill and is actually the preferred starting method.   

Please understand that if you order the wrong OCDT version the return exchange shipping both ways shall be paid for by the buyer.    Please ask questions if you don't understand.   Use on engines bigger than 100cc will void warranty.