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Who is it for - Climbers & Canyoneers
What it does - A drill bit for drilling half inch holes in soft sandstone
How it does it - Sized slightly small than half an inch, it accounts for the wobble that occurs when drilling in soft sandstone
The perfect sized drill bit for drilling 1/2" holes in soft sandstone. 12 milimeters is slightly smaller than 1/2", and accounts for the "wobble" that occurs when drilling holes in soft sandstone.
length: 6 inches
diameter: 12mm