HRC65 Super Hard Drill Bits(Internal Cooling and Lengthened)

HRC65 Superhard Drill (Internal Coolant / Extended Length)

High-Performance Drilling Solution for Hardened Steels and Tough Materials

Engineered specifically for drilling high-hardness materials up to HRC65—such as hardened mold steels, tool steels, and alloy steels—this series of solid carbide drills delivers outstanding performance in both productivity and precision. Available in 3×D and 5×D length-to-diameter ratios, these drills come in two configurations: internal coolant-through design for enhanced chip evacuation, and solid-type for dry or MQL operations.

Optimized for Hardened Steels up to HRC65
Manufactured using ultra-fine grain carbide with exceptional hardness, wear resistance, and fracture toughness. Ideal for consistent performance in demanding applications involving heat-treated or hardened materials.

140° Point Angle for Reduced Walking and Superior Accuracy
The self-centering 140° drill point geometry minimizes tool deflection and prevents walking—delivering precise hole location, better surface finish, and reduced need for spot drilling.

Available in 3×D and 5×D for Versatile Hole Depth Applications
Choose from standard and extended lengths to meet your specific drilling depth requirements—from shallow mold features to deeper through-holes in structural components.

Internal Coolant Design for Improved Chip Evacuation and Thermal Control
The coolant-through variant efficiently directs cutting fluid to the cutting edge, rapidly dissipating heat and removing chips during deep-hole drilling. This results in longer tool life, improved hole quality, and greater process stability.

Solid Drill Option for Dry or MQL Environments
For setups without through-spindle coolant, the solid drill version offers excellent performance with dry cutting or minimal lubrication—perfect for lean manufacturing and cost-sensitive production lines.

CNC Precision Ground with 5-Axis Grinding Technology
Each tool is fully ground on 5-axis CNC equipment to maintain ultra-high dimensional accuracy, sharp edge geometry, and exceptional repeatability across production batches.