4pcs 2-5 5-10 5-10 15-20 Countersink Power Drill Bit Bore

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Description:

Made of high speed steel, sturdy and durable.
4 types to meet your different needs: 9.7mm(0.38inch), 14mm(0.55inch), 21mm(0.83inch), 28mm(1.10inch) (countersink top diameter).
Great for making countersunk holes, DIY daily use, easy to use and effectively to drill without burr.
Used for workpiece circular chamfering or cone hole, the edges on the surface of the chamfering processing.
Suitable for processing metal and some , such as PVC board, aluminum, , iron.

Specification:

Material: HSS High Speed Steel
Inclined hole chamfer: 2-5, 5-10, 10-15,15-20
2-5: Suitable for holes in the range of 2mm-5mm( 0.07inch-0.20inch)，6mm(0.24inch) handle, 9.7mm (0.38inch) Diameter of top
5-10:Suitable for holes in the range of 5mm-10mm(0.20inch-0.39inch)，8MM(0.31inch) handle,14mm (0.55inch) Diameter of top
10-15: Suitable for holes in the range of 10mm-15mm(0.39inch-0.59inch), 10mm(0.39inch)handle, 21mm (0.83inch) Diameter of top
15-20: Suitable for holes in the range of 15mm--20mm(0.59inch-0.79inch)，12mm(0.47inch) handle, 28mm (1.10inch) Diameter of top

Package Includes:

4 Pieces Chamfers

Chamfer Drill Bit;HSS Deburring Tool Titanium Coated Chamfer;Countersink Bit Deburring Drill Bit Set Crosshole;4PC Hand Metal Chamfer Wood Cutting Tool Cutter;Wood Punch Set Countersink