Centre Drill
Discover top-quality Centre Drills from PTC Cutter, designed to deliver precision and reliability in every drilling operation. Crafted with advanced technology and premium materials, our Centre Drills excel at creating accurate starter holes, ensuring smooth transitions to deeper drilling. Whether you’re in aerospace, automotive, or general engineering, PTC Cutter’s Centre Drills are engineered to handle tough materials with ease, reducing the risk of breakage and extending tool life. Each drill features carefully ground tips and balanced construction for consistent performance.
With an unwavering commitment to excellence, PTC Cutter offers Centre Drills that meet the highest industry standards, ensuring flawless results every time. Explore our extensive range and find the perfect solution for your application, supported by our expert team ready to guide you. Trust PTC Cutter for your Centre Drill needs, and experience the difference precision and dedication can make in your workflow.
Product Specification
IS 6708 – 1977
| Pilot Drill | Body Diameter | Overall Length |
| 1.6 | 4.0 | 37.5 |
| 2.0 | 5.0 | 42.0 |
| 2.5 | 6.3 | 47.0 |
| 3.15 | 8.0 | 52.0 |
| 4.0 | 10.0 | 59.0 |
| 5.0 | 12.5 | 66.0 |
| 6.3 | 16.0 | 74.0 |
| 8.0 | 20.0 | 83.0 |
| 10.0 | 25.0 | 103.0 |
BS 328 – Part :2 : 1950
| B.S. No. | Pilot Drill | Body Diameter | Overall Length |
| 1 | 3/64 | 1/8 | 1.1/2 |
| 2 | 1/16 | 3/16 | 1.3/4 |
| 3 | 3/32 | 1/8 | 2 |
| 4 | 1/8 | 5/16 | 2.1/4 |
| 5 | 3/16 | 7/16 | 2.1/2 |
| 6 | 1/4 | 5/8 | 3 |
| 7 | 5/16 | 3/4 | 3.1/2 |
IS 6709 – 1977
| Pilot Drill | Body Diameter | Bell Diameter | Overall Length |
| 1.6 | 6.3 | 3.35 | 47.0 |
| 2.0 | 8.0 | 4.25 | 52.0 |
| 2.5 | 10.0 | 5.30 | 59.0 |
| 3.15 | 11.2 | 6.80 | 63.0 |
| 4 | 14.0 | 8.50 | 70.0 |
| 5 | 18.0 | 10.60 | 78.0 |
| 6.3 | 20.0 | 13.20 | 83.0 |
| 8 | 25.0 | 17.0 | 103.0 |
| 10 | 31.5 | 21.20 | 126.0 |