4-Piece HSS Countersink and Deburring Bit Set for Drilling Metal, Wood, and Plastic

Made of high-hardness 4241 high-speed steel (HSS) and with a durable titanium coating, the drill bits are strong and long-lasting.

Shaft: 6mm, 8mm, 10mm, 12mm; Size: 2-5mm, 5-10mm, 10-15mm, 15-20mm

Perfectly drills into materials with a hardness below 28 degrees, such as plastic, wood, soft metals, etc.

These drill bits can be used for chamfering workpiece openings and creating conical holes.

Ideal for professional or amateur repair and DIY projects.

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Size (chamfer size x length)

2-5mm (2-5mm x 45mm)

5-10mm (5-10mm x 47mm)

10-15mm (10-15 mm x 62 mm)

15-20mm (15-20 mm x 82 mm)

Product Details

This 90° titanium-coated chamfering tool is suitable for chip removal and prevents metal chips from flying out and rounding off the edges.

Wide Range of Applications

Suitable for objects less than 25 mm thick, such as thin panels made of wood, PVC panels, aluminum foil, insulation boards, or thin plastic sheets, etc.

First Step: Pilot Hole

First, drill a pilot hole in the wood or plastic to locate or guide a screw and increase the size according to the tap.

Second step: Install the chamfering tool

Install the chamfering bit on the drill press. If you need to chamfer a 16 mm hole, you can choose a 15-20 mm chamfering bit. Add water or cutting oil to cool the bit during chamfering.

Third step: Clearance hole

Finally, screw it in until it is horizontal. This bit should be used with a drill press; it is prone to wobbling and will affect the chamfering effect if you use a hand drill.