Produce a clean, flat bottomed hole every time. Woodline's feature a 3/8" diameter hex shank for a drill press, precision centering tooth, full surface shearing, high rake angle and anti-walk stabilization teeth. Amana Timberline have a 3/8" diameter round shank. Carbide tipped.
CARBIDE FORSTNER BITS
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Do you have a 2/38 forstner bit?
Not in carbide, only steel: