Upgraded 2 In 1 Tools: Based on our long time research on thread checker board and customer needs, we upgraded the original style to create a 2-in-1 with multi-size, metric and standard sizes tool, we also added 6 screw sizes.
No More Trips to Hardware Store: You can measure nuts bolts and screws at any time, no more trips to the hardware store, saving your time.
Applicable Specifications: The dimension of this thread checker board featured 23.8L x 7.08W with 1.57 inch thick. Made of hard plastic and it has 21 Standard ( SAE) sizes, 15 metric sizes and 6 screw sizes. An absolute must-have if you're working with different fasteners on regular basis.
Wide Application: Quickly identify the messy nuts bols screws. 2 ways to use, hang it on the wall or flat it on your workbench. Ideal for mechanical engineers, DIY tool lovers, auto repair, etc.
24/7 Customer Service: We offer 2 Year Manufacturer's Warranty. Please contact us if you have any problem at any time. We will solve the problem for you at first time.