Wing-Nut Stopper Boring Clamp with Metal Hardware, Wooden Boards and Tool-Free Adjustment for Gas Preparation Experiments in School Chemistry Labs

Features: Controlled Stopper Holding: The two-board clamp secures rubber or cork stoppers to help reduce shifting and slipping while a hole is bored. Metal and Wooden Structure: Metal clamping hardware joins wooden clamp boards, creating a defined holding frame for stopper preparation. Hand-Turned Fasteners: Two fasteners operate without an additional tool, supporting straightforward setup and release between lab tasks. School Chemistry Use: The clamp supports rubber and cork stopper preparation in middle and high school chemistry labs and classroom experiments. Package Contents: Includes 1 stopper hole-boring clamp for holding rubber or cork stoppers during boring tasks.

Specifications: Component: Metal, Wood Size: Approx. 18x1.2cm/7.09x0.47inch Quantity: 1 Piece

Package Includes: 1 Piece Laboratory Clamp Plate

note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.