Pete if you have the side tapper I do I think you use the handles to push the tap into the can. That is your source of leverage as opposed to a screw on a top tapper.

__________________
My Daily : 96 E-300 Diesel with 195,000 miles
Retired: 92 300D 2.5 T 345K miles and for sale
Retired: 95 E320 157K miles and currently parked with blown engine

Both retired cars are for sale as is my w124 shop inventory