Brandon25
Member
Drilling a 27/64 hole for the first time last night. Before this only 7mm up to now. The bit is from the big HF set, and never been used. I drill on my lathe. The squeal that this thing emitted was enough to wake my wife two floors up, on the opposite side of the house. How do you avoid this squeal? I was drilling around 800rpm, but it even squeaked loudly when I turned it by hand with the lathe off. Do I need to add a lube, or maybe predrill a smaller hole? There were no clogged wood chips in the blank or on the bit flutes.