131 hole positions, capable of storing 4-32mm cutting tool (milling cutters/U-drill/tool holders/collets) for easy organization and storage. The bottom of the product is reinforced and hardened, with strong load-bearingcapacity and lessprone to deformation. Suitable for professionals in industry such as mechanical processing, woodworking, and electronic maintenance, as well as for household use. Keep your tool organized and easily accessible with this 131 hole storage box. Whether you're working in a workshop and tackling projects , this storage box provide a convenient solution for keeping your tool inorder. Size:.215mm/8.46 inch x 215mm/8.46 inch x 30mm/1.18 inch Color:Black Material: Plastic Package Contents: 1 x Storage Box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.