TACKLIFE 9 Pcs Countersink Drill Bit Set with 1 Hex Key Wrench& 1 Storage Bag, High-Speed Steel Adjustable Carpentry Reamer Plated for Wood DIY-CDB01

TACKLIFE 9 Pcs Countersink Drill Bit Set with 1 Hex Key Wrench& 1 Storage Bag, High-Speed Steel Adjustable Carpentry Reamer Plated for Wood DIY

â–²Superior Drill Bit Set
The material of the drill bit is made of high-quality high-speed steel, which has high toughness and good wear resistance. The five-edge chamfer design automatically and quickly removes chips from the holes on both sides. 

â–²Unique Design
The five-edge chamfer design automatically and quickly removes chips from the holes on both sides.  Drilling and chamfering are in place one step at a time, which solves the annoyance of chamfering after drilling. Use a hex wrench to remove the five bevel chamfers or adjust the chamfer depth and depth for different length screws. 

â–²Mark to identify
There are marks to identify different sizes, help you away from guesswork. 

â–²Wide Application
Ideal size of components for all types of projects.Suitable for granite, tile, glass, square, ceramic, vitrified tiles, etc. Suitable for bench drills, hand drills and conventional drills.

â–²Content Included
1 hex wrench and 9 countersunk bits- Dia 4mm, 5mm, 6mm, 8mm, 9/64'', 1/8'', 7/64'', 3/32'', 5/64',. There are 9 different sizes to meet all your needs.

â–²Usage Step
Step 1: Rotate the Hex Key to adjust the length you need.
Step 2: Insert the countersink bit into your drill/driver. Make sure the drill bit is clamped.
Step 3: Vertically drilling to the required depth. The depth only needs to be that to allow the screw head to sink below the surface.

â–²Usage Tips
1.keep the drill vertical while drilling.
2.This countersink drill bit Do Not fit steel plate, iron plate and other hard materials.
3. When a drill bit is damaged, you just need to replace the counterbore device.
4.Use a bench drill to have a better effect, or the drill bit is prone to bend and break!