HUAREW 7 Inch Forstner Bit Extension for Adding Over 5-3/4 inches of Drilling Depth to Your 3/8" Round Forstner Bit
Size
Collet inside diameter: 3/8 inch (9.7mm)
Extend Length: 5-3/4 inch
Total length: 7 inch
Hex Shank Dia: 3/8 inch
Application
One of the most common uses for the forstner bit extension is for woodturners who need to bore out starter holes on larger vessels.
Contractors use the extension when they need to bore deep holes for running cables or wires and they also use it for joining larger timbers
when you use standard forstner drill bits drilling for flat bottom holes or start deep hole turning projects like on larger vases or containers, normal forstner bits are often not long enough,
So we offer drilling depths of 5-3/4" deeper,which require only simple installation for deeper holes
Note
The collet inside diameter is 3/8 inch. This tolerance is very tight and designed to accept forstner bits with shank sizes of 3/8 inch or slightly smaller.
Please note to tighten the screw before use to prevent the drill bit from slipping and falling off when rotating at high speed
The forstner bit extender is made from solid, heavy duty machined steel, harder than high carbon steel, with better ability to withstand heavy loads and impact forces