Package Included: 1x 1/4-Inch (6mm) Woodworking Square Hole Drill 1x 1/3-Inch (8mm) Woodworking Square Hole Drill 1x 1/2-Inch (12.5mm) Woodworking Square Hole Drill Product Specification Name:Square Hole Saw Mortising Chisel Material:45# Steel Square hole size: 6mm 8mm 12.5mm Application: Mainly used for carpentry, applicable to the construction, installation, decoration, decoration industry use. Use: -Use matters: Square hole drill is mainly used for woodworking aspects. -Square hole drilling is used in the square tenon machine, specially used for a drill square hole, it can not be used on electric drill. Features -This Mortising Chisel set is great for drilling square holes in wood Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industries. -Fits mortising attachments with 3/4 collars Note: - Please allow a slight error due to manual measurements,belongs to the normal phenomenon. - And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! EU Responsible Persons information: Name: PI NETWORK SARL Address:38 rue Dunois 75647 Paris CEDEX 13,75013,FR E-mail:friedlichrichter@outlook.com This merchant is committed to only offering products that comply with the General Product Safety Regulation.