M14 2–38mm Gold Brazed Diamond Mill Cone Drill

The M14 2–38mm Gold Brazed Diamond Mill Cone Drill is designed for post-drilling operations, allowing installers to enlarge, lower, shape, or true existing holes in hard tile and stone surfaces. It is particularly effective for correcting misaligned holes and facilitating the installation of pipe collars, sleeves, and cuffs.

Manufactured using gold brazed diamond technology, this mill cone delivers aggressive yet controlled material removal with excellent durability. The conical profile (2–38mm) enables gradual enlargement without inducing stress, helping to reduce cracking and chipping after drilling.

Fitted with an M14 threaded connection, it mounts directly onto an angle grinder and operates at 6000–11000 RPM. Designed for dry use, no continuous water feed is required. An optional adaptor allows conversion for use with standard 3-jaw drill chucks when required.

KEY FEATURES & BENEFITS

• 2–38mm working range – enlarges and shapes existing holes

• Gold brazed diamond coating – fast, durable material removal

• M14 thread – direct fit to angle grinders

• Dry use design – no water required

• Medium grit (50–60) – balanced control and cutting speed

• Conical profile – smooth, controlled hole enlargement

• Reduces cracking when adjusting drilled holes

• Adaptor available – compatible with standard drill chucks

TECHNICAL SPECIFICATIONS

• Working Range: 2–38 mm

• Connection: M14 thread

• Tool Type: Diamond mill cone

• Grinding Grain: Medium (50–60)

• Cutting Technology: Gold brazed diamond

• Recommended Tool: Angle grinder

• Max Speed: 6000–11000 RPM

• Cooling: Dry use

• Use: Hole enlargement and shaping only

SUITABLE MATERIALS

• Porcelain tiles

• Marble

• Granite

• Travertine

• Natural stone and dense ceramics