





9STM Series | Alpha ThunderMax Straight Flute Step Drill
The Alpha ThunderMax Straight Flute Step Drill is a heavy-duty solution for drilling sheet metal and plastics. Offering 2x the life of standard bits, it features a self-starting split point and a tempered black finish for superior lubricant retention. The straight flute design provides a robust cutting action that is easy to control and re-sharpen.
Important: The use of quality cutting fluid is mandatory to prevent heat buildup and maximize tool life.
Key Features
Straight Flute: Strong, easy-to-control cutting action.
2x Life: Made in the UK for professional durability.
Tempered Black Finish: Maximizes lubricant hold and resists corrosion.
Drills & Deburrs: Two operations in one pass.
Available Models
9STM4-12TM: 4-12mm (9 Steps, 6mm Non-slip shank)
9STM6-30TM: 6-30mm (13 Steps, 8mm Non-slip shank)
9STM6-36TM: 6-36mm (11 Steps, 10mm Non-slip shank)