Diamond core drill bit Diam S3 162 mm cutting diameter, 450 mm length, 1 1/4 inch connection (DIS3162N)

Diamond core drill bit Diam S3 with a 162 mm cutting diameter and 450 mm overall length is designed for core drilling in concrete, reinforced concrete and masonry. The bit features a diamond-segment cutting edge that provides efficient material removal and a 1 1/4" threaded connection compatible with standard core drilling rigs and rotary drills. It is intended to produce precise circular holes for pipes, conduits and other building services installations.

Advantages

The diamond-segment cutting edge delivers fast penetration and prolonged service life when working in abrasive materials. The 1 1/4" threaded connection ensures secure attachment to a wide range of core drilling rigs and handheld rotary drills. Its 450 mm overall length combined with the 162 mm cutting diameter gives a balance between reach and stability for through-holes and deep-set installations. The design reduces vibration and helps maintain a straight drilling line during operation.

Suitable for

• Making circular holes in concrete and masonry for plumbing pipes and drains
• Creating openings for electric conduits and cable routes
• Installing HVAC and ventilation ducts that require precise circular cuts
• Core sampling and removal of concrete plugs in renovation and retrofit work

Key specifications

• Cutting diameter: 162 mm
• Overall length: 450 mm
• Connection: 1 1/4" threaded
• Cutting edge: diamond-segment
• Primary materials: concrete, reinforced concrete, masonry
• Typical use: core drilling for through-holes and installation apertures

How to use

Mount the core drill bit securely to a compatible core drilling rig or rotary drill with a 1 1/4" threaded arbor. Position the rig perpendicular to the work surface and, where possible, use a drilling stand or guide to maintain alignment. Start drilling at low speed to establish the cut, then increase speed and apply steady feed pressure. Use continuous water cooling where appropriate to reduce heat build-up and to clear debris from the cutting zone. Withdraw periodically to remove the core and flush out slurry, then resume drilling until the desired depth or completion of the through-hole.

Usage recommendations

Use appropriate personal protective equipment, secure the work area, and confirm the absence of hidden services before drilling. For reinforced concrete, moderate feed pressure and adequate water cooling will extend segment life. Replace the bit if cutting performance degrades or if segments show significant wear.