[Single 4mm+small wrench]

[4-piece set + small wrench (3-6mm)]

[Single 4.5mm+small wrench]

[7-piece set + small wrench (3-10mm)]

[Single 3mm+small wrench]

Functions:
1. The wood drill with countersink is made of carbon steel and the countersink is made of high-quality 45# steel, which ensures a long service life.
2. The combined drill and countersink is ideal for drilling, chamfering, deburring and countersinking.
3. There are 10 sizes of 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 7 mm, 8 mm, 10 mm, and you can choose the one you want.
4. The five groove design provides small chip loads and faster removal. It can drain wood sawdust faster and smoothly.
5. Suitable for drilling holes on board with low hardness such as wood, plastic and other soft material.

Technical data:
Material: carbon steel (drill), 45# steel (countersink).
Flutes: 5.
Drill diameter: 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 7 mm, 8 mm, 10 mm, 3-10 mm (3/4/5/6/7/8/10 mm), 3-6 mm (3/4/5/6 mm) (optional).
Countersink diameter: 15.8 mm.
Allen key size: 55 x 20 mm.
Quantity: your choice.

Package includes:
1 piece (or 1 set) x countersunk drill.
1 x Allen key.

Note:
There are only 7 pieces in 3-10 sets and only 4 pieces in 3-6 sets.