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Whiteside Machine Company's carbide tipped boring bits feature a centre point and two carbide spurs to eliminate tear out.
The 35mm diameter bit is widely used for European style cabinet door hinges.
The 54mm (2-1/8") diameter bit is used mostly for boring door knob holes (cut outs).
Proudly made in the USA.
Use in a drill press or boring machine only.
***NOT FOR USE IN ROUTERS***
All Whiteside’s cutting tips are hand brazed, precision ground and made from American industrial grade micro grain tungsten carbide.