Adjustable spacing between spindle: 0.53"~6.46" (13.5~164 mm).
Great drilling capacity for wood ?0.39"~?2" (?10~?50 mm).
The boring head accommodates high running speed up to 5500 RPM.
Exclusively designed with arc theorem.
Graduation adjustment for the desired size between two spindles.
Ideal for application for general home products, assembly toys etc.
Suited for fitting on general boring machines.