With a reduced shank, these bits fit 3/8-in and larger drills and drill presses, these wood drill bits are ideal for fine woodworking,udes 1/4-in (6.3mm), 3/8-in (9.5mm), 1/2-in (12.7mm), 5/8-in (15.8mm), 3/4-in (19.0mm), 7/8-in (22.2mm), 1-in (25.4mm), 1-1/8-in (28.5mm), 1-1/4-in (31.7mm), 1-3/8-in (34.9mm), 1 ...
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