I also have the Poison Tail Jig Mold, I used a 5/64" Drill Bit and it just works Prefect I love them Small 1/8 oz Poison Tail Jigs, " There going to be prefect fishing around Boat Docks, I also poured some with the OWNER TWIST LOCK HOOKS, They came out prefect GOOD LUCK EVERYONE ON THERE POISON JIGS