Description
Overview:
The Timco Countersunk Bit 20.5 mm HSS 3 Flute is a precision cutting tool for creating clean 90° countersinks in metal, plastic, and wood. Made from M2 high-speed steel (HSS), it offers a good balance of hardness and toughness for long service life under regular use. The 3-flute geometry provides stable, chatter-free cutting and a smooth finish, helping screw heads sit flush or slightly recessed. Suited to cordless and corded drills, as well as pillar drills with a standard 3‐jaw chuck, it is ideal for preparing pilot holes, deburring drilled edges, and chamfering. Its 20.5 mm head makes it a useful size for common countersunk fixings and general fabrication tasks carried out by tradespeople, maintenance teams, and DIY users.
Key Features:
- M2 HSS construction for durability and consistent performance across a range of materials
- 3-flute design for steady, low-vibration cutting and a fine surface finish
- 20.5 mm diameter head for creating accurate, round countersinks
- 90° angle suited to standard metric countersunk screws for flush seating
- Works on metal, plastics, hardwoods, and softwoods when used with correct speed and feed
- Suitable for handheld drills and drill presses with standard chucks
- Helps deburr and chamfer holes to reduce sharp edges and improve appearance
- Reliable results with minimal tear-out in wood and reduced burring in metal
- Compact form factor for easy storage in site toolkits and workshop drawers
- Timco brand quality for everyday trade and workshop use
Typical Applications:
Countersinking pilot holes for countersunk screws, deburring drilled holes in sheet metal, chamfering tube and plate edges, and tidying holes in plastics to prevent cracking. Useful in fabrication, joinery, cabinetry, site installation, maintenance, and workshop repair. Suitable for preparing fixings on hinges, brackets, electrical back boxes, and hardware where a neat, flush finish is required.
Also known as:
Countersink bit, countersink cutter, three‐flute countersink, 90° countersink, deburring bit, chamfering bit, HSS countersink, metal countersink tool, wood countersink tool, plastic countersink tool.
Product Specifications
| L&S Part No. | 902 0735 |
|---|---|
| Manufacturer | Timco |
| OEM No. | CS205 |
| Unit of Sale | 1 |
| Key Features | - M2 HSS construction for durability in various materials - 3-flute design ensures low-vibration, smooth cutting - 20.5 mm diameter head for precise countersinks - 90° angle fits standard metric countersunk screws - Compatible with handheld and pillar drills with standard chucks |


