JEI's Turbo™ Gold High Quality Hss M2-al Tin Coated Spiral Fluted Step Drills.  Designed to enlarge or produce holes through sheet metal materials, with a thickness of up to 4 mm.
- Manufactured from high quality HSS M2-AL material with added Titanium Nitrate (TiN) coating, providing long lasting tool life and faster results.
 
- Double fluted to enable swarf to collect and clear efficiently
 
- High quality cutting performance.
 
- Suitable for Steel <1100RM (N/mm²), Mild Steel, Alloys, Stainless and Plastics.
 
- Shank with 3 flats for better grip in the holding chuck, preventing slipping.
 
- Requires minimum cooling.
 
- Spiral flute design ensures smooth cutting action, requires less force during cutting action and provides a burr free hole.
 
- Supplied as 3 piece set in plastic case
 
Available in a 3 piece set with a spiral flute tapered cutting edge for premium drilling performance.
3 piece set includes:
Five Steps - Min - 4 mm | Max - 12 mm (4/6/8/10/12)
Nine Steps - Min - 4 mm | Max - 20 mm (4/6/8/10/12/14/16/18/20)
Thirteen Steps - Min - 6 mm | Max - 30 mm (6/8/10/12/14/16/18/20/22/24/26/28/30)
Specification
| No. of Steps | 
Size (mm) | 
Overall Length (mm) | 
| 5 | 
4, 6, 8, 10, 12 | 
65 | 
| 9 | 
4, 6, 8, 10, 12, 14, 16, 18, 20 | 
75 | 
| 13 | 
6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 | 
98 |