Diager 504C HSS Metal 90° Countersink Drill Bit Set 5 Pcs
The Diager 504C HSS Metal 90° Countersink Drill Bit Set 5 Pcs is designed for countersinking, chamfering, and deburring applications on compatible metal materials. Built from HSS metal construction with a 90° countersink angle, this set supports clean screw seating, edge finishing, and hole preparation for fabrication, installation, maintenance, and workshop work. The Diager 504C set includes 5 pieces of HSS metal countersink drill bits, making it suitable for metalworkers, fabricators, technicians, maintenance teams, contractors, and professional users who need a practical countersink bit set for compatible drilling and finishing applications.
Sold per unit. Brand and stock confirmed on your quote.
Specifications
| Brand | Diager |
| Model | 504C |
| Product Type HSS | Metal Countersink Drill Bit |
| Set Set Quantity | 5 pcs |
Description
Key Benefits
- 5-piece HSS metal countersink drill bit set for compatible metalworking applications.
- 90° countersink angle supports clean screw seating and chamfering work.
- Suitable for countersinking, deburring, hole preparation, fabrication, and maintenance tasks.
Ideal Applications
- Countersinking, chamfering, deburring, screw seating, and hole edge finishing.
- Metal fabrication, repair, maintenance, installation, and workshop applications.
- Use by metalworkers, fabricators, technicians, maintenance teams, contractors, and professional users.
What’s Included
1 set Diager 504C HSS Metal 90° Countersink Drill Bit Set 5 Pcs


