Drill Dia.1.4-2.2cm+ L60-100cm metal connecting rod for removing inner bamboo knots : essential tools for shakuhachi, flutes

They are essential tools for making shakuhachi, flutes, after straightening the bamboo, the next step must be to remove inner bamboo knots.
1 inch=2.54cm.
Metal connecting rods: Each can be connected to drill bits of different diameters.  The rods' length:60,80,100cm.
High-quality drill bits (can drill wood, bamboo, stainless steel, iron plates, and other metals).
The Dia. of the drill bit:1.4,1.6,1.8,2.0,2.2cm,The metal rod and drill bit can be removed and installed at will.
Please choose your need The Dia. of the drill bit/metal rod and order Amounts in kits.
Mixed Order is ok, just send me a message for detail requests.
Processing Time: 4-5 days. Transportation is free, with 2-3 weeks delivery time postal air freight for packages under 20 kg. Heavier items are shipped via sea or rail—door-to-door service with a tracking number.