These bits are used for drilling pocket holes, overlapping holes, or holes on the edge of materials. Specially designed fine kerf teeth help to produce accurate and clean holes. The bit's precision ground edges also help produce flat bottom holes. Set includes 1 each: 1/4", 1/2", 5/8", and 3/4" Forstner bits. No. 48-14-0004: Pieces In Set: 4 pcs, Pkg Qty: 4, Package Type: Clamshell