The symmetrical X-shape tip construction of the 4-cutting edges with one main cutter and two auxiliary cutters provides for accurate and correct guidance of the drill bit.

The geometry with 4-cutting edges protects the bit against damage when impacting on reinforcement.

The design of the head construction significantly decreases friction in the hole so that the tool life is considerably extended.

Short flute entries and large volume borehole cut channels in the double spiral provide for fast spoil removal.

Features:
• Optimum vibration behaviour
• Reduced friction
• Maximum transfer of energy
• Guided centrally
• Stability against torsional loads
• Precise hole
• Reduced noise emissions
• Rapid spoil removal due to large grooves and double helix
• Protection of man and machine
• Noticeably longer life

Made in Germany