2PCS Forstner Bit Extension Set with Anti-Slip Design,Adding Over 3.28″&5.64″ Drilling Depth to Forstner Bit,Suitable for Process Wooden Furniture,Timber and etc.

About this item Simple & Efficient:When we need to drill deeper holes in certain woods,normal forstner bits are often not long enough;So we offer two extensions for drilling depths of 3.28″ and 5.64″ deeper,which require only simple installation for deeper holes Non-slip Design:The traditional forstner drill extensions were prone to slipping when working with hardwoods, so we developed a non-slip design for the part that attaches to the drill rig, so that the drill jaws can firmly grip the extension Note:The inside diameter of our forstner drill bit extension collet is 3/8 inch,so it will only fit forstner drill bits with 3/8 inch or smaller shanks;Tighten the screw before use to prevent the drill bit from slipping when rotating at high speed Good Tools Require Good Materials:Our extension poles are built with rugged,high carbon steel for structural stability,with precision ground and polished surfaces;The shanks are 3/8″ in diameter and will fit most drills Great Value Set:Cost-effective set,1PCS Forstner Bit Extension (3.28″ Drilling Depth) 1PCS Forstner Bit Extension (5.64″ Drilling Depth) 1PCS hex key