M14 Diamond Core Drill Bit Premium | Dry Drilling Set 20-68mm + Finger Router Bit

Professional Key Features

• Vacuum brazed technology: 5× longer service life compared to standard drill bits
• Optimized for dry drilling: No water cooling required (marble, granite, porcelain stoneware)
• M14 universal fit: Compatible with all angle grinders
• Diamond finger router bit: For reworking and enlarging drill holes

Technical Performance Data

Practical Applications

• Ø68 mm: sockets & flush-mounted boxes
• Ø50-60 mm: drain installations
• Ø32-40 mm: water pipes & inlets
• Ø20 mm: cable routing & plumbing connections

Expert Recommendations for Maximum Efficiency

• Drilling technique: A slight wobble of the core bit activates the diamond segments; a 15°–30° angled start enables work without a drilling guide
• Cooling management: After 20 minutes of operation, cool in water for 2 minutes → +40 % service life
• Pressure control: Maximum 5 kg of contact pressure for smooth cutting edges

Main Benefits at a Glance

• Lightning-fast drilling performance: 1 cm in 10–15 seconds (porcelain stoneware)
• Anti-jam system: Double-sided diamond coating prevents binding
• Energy-efficient: 30 % shorter setup times thanks to a ready-to-use design

Scope of Delivery

• 5 × M14 diamond core drill bits (20/27/35/55/68 mm)
• 1 × 20 mm diamond finger router bit
• 1 × M14-HEX adapter (3/8" compatibility)
• DE/EN instruction manual with material reference table

Safety Notice

• Use only with safety goggles
• Not suitable for reinforced concrete
• Observe the maximum drilling depth of 40 mm

Developed by professionals – where precision meets easy handling.