Key features

• •★【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】We found that traditional forstner drill extensions were prone to slipping when working with some 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 while rotating at high speeds, further preventing work errors.
• •★【Note the Size】The inside diameter of our forstner drill bit extension collet is 3/8 inch, so this extension will only fit forstner drill bits with 3/8 inch or smaller shanks, please check the size to see if it will fit your drill bit before purchasing. Please note to tighten the screw before use to prevent the drill bit from slipping and falling off 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. Please note that Forstner drill bits should be larger than 0.8" in diameter to prevent the protruding part of the set screw from scratching the hole wall when drilling.
• •★【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.