The pumping spring of Jonard is made of ultra-strong tool steel and is heat treated for maximum strength and durability. This pump is characterized by the following properties:

Features:

• Safe nut-and-spring design for a slip-resistant grip and the ability to withstand strong pressure
• Four tongue- and jaw-positions with smoother, positive thickening between the halves for comfort and versatility
• Maximum back opening of 25.4 mm for a wide application spectrum
• Ergonomically shaped handle with reinforced plastic grip for more comfort and torque