The classic banger. This style is standard that all current nails are based off of. The ingenious design keeps the business end of the nail far away from the body of the glass so there is no risk of thermal shock. This prevents any damage to the joint. The cup design of the head also creates a more even heating surface and promotes less waste. The thick 4mm walls will soak up heat and hold the temp longer.This allows for both low temp and high temp.
This style is available in 45 degree or 90 degree variants.