10 Piece Set includes: Slotted: 1mm, 1.5mm, 2mm, 3mm, 4mm crosspoint: PH000, PH00, PH0, PH1, PH2. Essential precision bit set for many basic electronics, jewelry, cell phone, furniture, and much more. Works with all standard .25 inch screwdriver and drill chucks including pneumatic, electric, rechargeable.