DUO-S impact drill bit, 1/4-inch hexagonal shank

No slippage in the drill chuck

Hexagonal shank

Highly accurate spot drilling

Lathe centre with outstanding centring properties

Hammer-resistant, extremely robust and designed for the toughest applications

• State-of-the-art vacuum hardening


• Highly resilient cemented carbide tip


• Optimum soldering using high-vacuum technology, heat-resistant up to 1100°C


• Specially quenched and tempered clamping shank


• High-strength drill bit head, same shank material as the hammer drill bit

Fast drilling progress

• Aggressively ground cemented carbide plate


• Multi-spiral, large-volume spiral conveyor

Suitable for rotary and impact drilling

special cemented carbide tip geometry

PGM tested

Suitable for drilling holes intended for anchor connections that are subject to approval.