The Center Drill BS-5 is a combined center drill and countersink tool made as per British Standard BS 328 Type 5.
Unlike standard 60° center drills, the BS-5 type features a 90° included drill angle, specially designed for countersinking and deburring applications.
Manufactured from high-quality High-Speed Steel (HSS) , it provides excellent cutting edge strength, heat resistance, and accuracy.
This tool allows the user to create both the center hole and countersink in a single operation, ensuring precise seating for fasteners or lathe centers.
| Common Info | |
| Country of origin | India |
| HSN Code | 82075000 |
| Center Drill | |
| Type | Center Drill BS-5 (British Standard Type 5 – 90° Combined Drill & Countersink) |
| Material | HSS |
| Coating | Uncoated |
| Drill angle | 90° |
| Size | Pilot Dia (d1) = 3/16" Body Dia (d2) = 7/16" Pilot Length (l1 max) = 9/32" Pilot Length (l1 min) = 1/4" Overall (l2) = 2.1/2" |
| Shank Diameter | 6 mm |
| Application | Steel / Stainless Steel /Aluminum / Non-Ferrous Metals |