Specification:
Material: Alloy Steel

Phillips Bits: PH0, PH1, PH2, PH3 (2 OF EACH)

Flat Head Drill Bits (Approx.): (2 OF EACH) 1/8"-3.2 mm(0.13 in), 5/32"-4 mm(0.16 in), 3/16"-4.8 mm(0.19 in), 1/4"-6.3 mm(0.25 in)

Countersink Bit (Approx.): 3/32"-2.4 mm(0.09 in), 1/8"-3.2 mm(0.13 in)

Weight (Approx.): 462 g

Box Size (Approx.): 19.4*7.4 cm (7.64*2.91 in)

Quantity: 20Pcs/Set

Features:
--Alloy steel material, easy to switch between drill and drive bits in seconds.
--Equipped with 8 cross drills, 8 slot drills and 2 countersink drills to meet your basic needs.
--Convenient 1/4'' hex shank with tapered end prevents over digging and includes a quick change adapter for easy size changes.
--Portable tool kit with moderate weight and compact size for easy carrying. Includes 2 countersink bits and 1 hex socket wrench.
--Suitable for repairing all popular laptops, cell phones, game consoles, long drill bits, especially for home appliances and furniture repair.

Usage Method:
1.Insert the hexagonal shaft of the semi-automatic driver into the chuck of the corded or cordless drill.
2.Make sure the unit is centered in the chuck. Tighten the drill chuck to secure the semi drill.
3.Loosen one thumb nut and insert the selected drill/driver bit into the semi-automatic driver. Tighten the thumb nut to make sure it does not come loose.
4.Push the collar back towards the drill and rotate the drill. Loosen the other thumb nut, put in the second bit and tighten the thumb nut around the bit.
5.Slide the collar away from the drill and lock the unit.

Package Includes:
1 x Drill Bit Holder
8 x Phillips Drill Bits
8 x Flat Head Drill Bits
2 x Countersink Drill Bits
1 x Allen Key