9STSM Series | Alpha ThunderMax Spiral Flute Step Drill
Engineered for 2x longer life, the Alpha ThunderMax Spiral Flute Step Drill drills and deburrs in one smooth process. Its self-starting split point eliminates the need for a pilot hole, while the tempered black finish retains lubricant to assist chip flow and reduce heat. Made in the UK, this bit is ideal for non-ferrous metals, sheet metal, and plastic.
Important: The use of quality cutting fluid is mandatory to prevent heat buildup and maximize tool life.
Key Features
2x Life: Made in the UK for enhanced durability.
Tempered Black Finish: Maximizes lubricant hold and resists corrosion.
Self-Starting: Split point starts immediately without walking.
Smooth Cutting: 2-flute spiral design for efficient material removal.
Available Models
9STSM4-12TM: 4-12mm (9 Steps, 6mm Non-slip shank)
9STSM4-20TM: 4-20mm (9 Steps, 8mm Non-slip shank)