system ensures that drill depth can be precisely controlled to achieve consistent, accurate drilling results that meet professional woodworkers' stringent accuracy requirements.Bearing Equipped Design: The bearing design allows for controlled drilling, effectively reducing friction and protecting the surface of the wood from damage, eliminating scratches or chisel marks that can occur during the drilling process, and ensuring the finish intact.Multi-Specification Configuration: The set includes five sizes of 2.8/3/3.2/3.5/4mm Forstner drills, which can meet the needs of opening holes in various woodworking scenarios. With optioal punching pliers, it is the perfect woodworking tool for precise drilling and multi-purpose applications, meeting various woodworking needs.Convenient Storage and Carrying: The limit countersink drill set comes with a storage box that not only provides an organized storage space for each tool, but also greatly improves the convenience of carrying and transferring tools.Specifications:Name: Countersink Drill SetMaterial: metal+plasticsType: 5pcs set without punching pliers, 6pcs set with punching pliers (optional)Drill bit length: 70mm/ 2.76inShank diameter: 8mm/ 0.31inPliers length: 150mm/ 5.91inPackage size:5pcs set without punching pliers: 197* 147* 49mm/ 7.76* 5.79* 1.93in6pcs set with punching pliers: 248* 220* 49mm/ 9.76* 8.66* 1.93inPackage weight:5pcs set without punching pliers: 458g/ 1.01lb6pcs set with punching pliers: 870g/ 1.92lbPacking List(5pcs set without punching pliers):5* Countersink Drill2* Wrench1* Storage BoxORPacking List(6pcs set with punching pliers):5* Countersink Drill1* Punching Pliers2* Wrench1* Storage Box