Description
Overview:
The Timco Countersunk Bit 6.3mm HSS 3 Flute is a precision countersinking tool for creating clean, flush seats for countersunk screws in metal, plastic, and wood. Manufactured from durable M2 high-speed steel, it delivers reliable performance and maintains a keen cutting edge under continuous use. Its three-flute geometry and 90° included angle produce smooth, round chamfers with reduced chatter and a neat finish. Sized at 6.3 mm, it is ideal for preparing seats for 3.0 mm screws in pilot or clearance holes. Suitable for use in cordless and corded drills or a drill press with a standard chuck, this compact bit is a practical choice for fabrication, assembly, and joinery work in the workshop or on site.
Key Features:
- M2 high-speed steel construction for strength, wear resistance, and consistent cutting
- Three-flute design for efficient chip evacuation and a smooth surface finish
- 90° countersink angle for standard countersunk fasteners and neat flush seating
- 6.3 mm diameter, suited to countersinking for 3.0 mm screws in drilled holes
- Works on ferrous and non‐ferrous metals, plastics, hardwoods, and softwoods
- Helps reduce chatter and burring when used at appropriate speeds and feed
- Compatible with standard drill chucks on cordless drills, corded drills, and drill presses
- Compact size for easy control, accurate positioning, and minimal run‐out
- Useful for both countersinking and light deburring of existing holes
- Reliable Timco quality for everyday site work, workshop tasks, and maintenance
Typical Applications:
Countersinking pilot or clearance holes for flush-fit countersunk screws in sheet metal, brackets, enclosures, timber fixings, furniture components, and plastic housings. Ideal for fabrication, assembly lines, carpentry and joinery, electrical and HVAC installs, machinery repairs, and general workshop or site maintenance where clean, precise countersinks are required.
Also known as:
Chamfer bit, 90° countersink, CSK cutter, three-flute chamfer tool, deburring countersink, sinker bit, HSS chamfer cutter, countersink tool for metal/plastic/wood.
Product Specifications
| L&S Part No. | 902 0730 |
|---|---|
| Manufacturer | Timco |
| OEM No. | CS63 |
| Unit of Sale | 1 |
| Key Features | - M2 high-speed steel for strength and wear resistance - Three-flute design for efficient chip evacuation - 90° countersink angle for flush seating - 6.3 mm diameter for 3.0 mm screw seats - Compatible with standard drill chucks |
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