If you are a professional piercer in need of a tool for piercings such as a tongue piercing, search no more.
Small model:

• 6" (15.25 cm) long.
• Head of 3/8" (9 mm), a hole of 0.2" x 0.31" (5x8 mm), and a slot of 0.1 (2.5 mm).

Large model:

• 6.5" (16.5 cm) long.
• Head of 9/16" (14 mm), a hole of 0.28" x 0.58" (7x15 mm), and a slot of 0.1 (2.5 mm).

Both models have a smart 3-step locking mechanism.