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Achieve smooth, chatter-free countersinks on-site with the Alpha Onsite+ 90 Degree 3 Flute Countersink. Its advanced 90-degree arc flute design ensures a burr-free finish and perfect chip removal, even when used in handheld cordless drills. The AlTiN coating provides extreme temperature resistance for a long service life, making it ideal for mild steel, aluminium, and stainless steel.
Key Features
Optimised for Cordless Drills: 1/4" Hex Insert suits all standard drills and impact drivers.
Chatter-Free Design: Advanced 90° arc flute design for a smooth finish.
Long Life: AlTiN Coated for extreme temperature resistance.
Clean Finish: Smooth cutting edges for burr-free countersinking.
Materials: Ideal for mild steel, aluminium & stainless steel.
Specifications by Model
8.3mm (CSAF3-8.3)
Countersinking Range: 2 - 8.3mm
Overall Length: 31mm
10.4mm (CSAF3-10.4)
Countersinking Range: 2.5 - 10.4mm
Overall Length: 33mm
12.4mm (CSAF3-12.4)
Countersinking Range: 2.8 - 12.4mm
Overall Length: 34mm
16.5mm (CSAF3-16.5)
Countersinking Range: 3.2 - 16.5mm
Overall Length: 37mm
20.5mm (CSAF3-20.5)
Countersinking Range: 3.5 - 20.5mm
Overall Length: 41mm