ABOUT THE DETAILS - The metal c clamp has an overall length of 17cm, an adjustable opening range of 0-4cm, a throat depth of 3cm, and a thread diameter of 0.55cm. It is also designed with a thickened swivel pad to prevent scratches on wooden joints or glass and to clamp various shapes without distortion. HEAVY DUTY C-CLAMP - Our welding clamps set is forged from high-quality high-carbon steel with a brushed surface design and high overall hardness and torque. The rubber-covered handle has a non-slip textured design for a comfortable grip and is not easily dislodged. HANDLE DESIGN - These welding locking clamps are ergonomically designed with adjustable swivel screws to help you easily adjust the correct size for comfortable use. A quick-release lever at the handle ensures quick locking, unlocking, and repositioning. MULTIFUNCTIONAL TOOL - Our face clamps can be used in a range of industries including automotive repair, carpentry, welding work, ceiling fixing, construction, cladding, engineering, metalwork, cabinet repair, and more. Ideal for home, workshop, and professional use. HAPPY BUYING - We strive to provide better after-sales service and offer a 30-day money back. If you have any questions or dissatisfaction with the adjustable c clamp, please feel free to contact us to let us know. Our customer service will get back to you ASAP within 24 hours., Manufacturer: JEUIHAU