26:1 Thrust Ratio Drive Silicone Sealant Gun Heavy Duty Caulking Gun for 310ml Cartridge (DS00004)

Features：

• For 310 ml hard cartridge.
• 26:1 thrust ratio drive.
• Cast aluminum handle and steel trigger.
• Rotatable half-cradle carriage in metal quality.
• Ladder hook pull design.
• Laminated gripper plates.
• Adjustable wear-compensating device.