12xD Deep Hole Carbide Drills

Internal coolant is recommended for 12xD deep-hole drilling because it delivers coolant closer to the cutting edge and helps evacuate chips through the long flute.

Peck drilling should not be used automatically. The correct cycle depends on the drill geometry, workpiece material, coolant supply, chip formation, and manufacturer’s recommendation.

Material-specific options can be selected for steel, stainless steel, cast iron, aluminum alloys, titanium alloys, and other engineering materials.

Yes. Landun can review non-standard diameters, special flute lengths, shank dimensions, coolant-hole designs, point geometries, coatings, step structures, drawings, samples, and replacement-tool projects.

Please provide:

• Workpiece material and hardness
• Required hole diameter
• Required hole depth
• Through-hole or blind-hole design
• Hole tolerance and straightness requirements
• Entry and exit surface conditions
• Intersecting holes or interrupted sections
• Machine and spindle information
• Tool-holder information
• Expected spindle runout
• Coolant pressure, flow, and filtration
• Workpiece clamping method
• Expected production quantity
• Current chip-removal, hole-deviation, or breakage problems