Platinum Racing Products - RB30 Timing Belt Tensioner Drilling ToolBLACK, SILVER, GOLD, PURPLE NORMALLY STOCKED OTHER COLORS EXPECT 3 4 WEEKS LEAD TIME RB30 Timing belt tensioner drilling tool. This simple little tool will help you drill your pilot hole before tapping, and flip it over to guide your tap to get your tensioner in the right spot first attempt, but also get it in straight! You can now do this yourself without the need for a machine shop! It's for RB30 block for twin cam head conversions only These come