Masonry drill bit GRAPHITE 14 mm cylindrical for concrete (57H322)

GRAPHITE masonry drill bit 14 mm with a cylindrical shank is engineered for drilling precise holes in concrete and masonry. The 14 mm diameter and hardened tip give stable performance in brick, block and non‑abrasive concrete when used with appropriate rotary or hammer drilling modes. This drill bit is suitable for creating anchor and dowel holes for fastenings and fixtures in construction and renovation tasks.

Advantages

The carbide‑tipped cutting head provides improved wear resistance and consistent drilling accuracy over routine use. The cylindrical shank ensures reliable clamping in standard chucks and holders, reducing runout and vibration. The bit’s geometry is optimized for efficient debris removal and controlled penetration in masonry materials, which helps maintain hole dimensional accuracy and extends tool life.

Suitable for

• Drilling anchor and dowel holes in brick and block walls
• Making mounting holes in concrete for light to medium fixtures
• General masonry drilling in renovation and construction works

Key specifications

• Diameter: 14 mm
• Shank type: cylindrical
• Tip: hardened carbide cutting tip for masonry
• Compatible drilling modes: rotary and hammer (depending on tool capability)
• Primary materials: concrete, brick, masonry block

How to use

Secure the drill bit in a compatible chuck that accepts cylindrical shanks, ensuring firm, centered clamping. Select the appropriate mode on your drill—rotary for softer masonry or hammer/rotary‑hammer mode for harder concrete—according to the tool’s instructions. Start drilling at low speed to position the bit, then increase speed and apply steady forward pressure, withdrawing periodically to clear dust and debris from the hole. Use personal protective equipment such as safety glasses, dust mask and hearing protection while drilling.

Usage recommendations

For best results, match drill speed and hammer action to the substrate: lower speeds and reduced hammer intensity for brick and hollow blocks, higher hammer mode for solid concrete. Replace the bit when cutting edges show significant wear to maintain hole accuracy and avoid damaging fasteners.