SUBORUI 1/4″ Quick Change Hex Shank Premium HSS Drill Bits

Black & White Dual Finish 135° Split Point Drill Bits for General Industrial Metal Drilling

SUBORUI 1/4″ Quick Change Hex Shank Premium HSS Drill Bits are engineered for high-volume, general-purpose industrial metal drilling operations, delivering reliable, consistent performance at an exceptional value. The distinctive black & white dual finish design combines superior functional benefits with easy on-site identification, making them the preferred choice for global B2B partners including hardware distributors, construction contractors, metal fabrication shops, automotive repair facilities, and MRO service providers.

Core Design & Material Advantages

Premium Industrial-Grade HSS Base Material

• Excellent red hardness and wear resistance for general-purpose metal drilling, delivering long service life in high-volume applications

• Superior toughness and impact resistance, significantly reducing breakage risk in handheld power tools and impact drivers

• Optimal cost-performance ratio, perfect for bulk industrial consumption and high-turnover tool inventory

Signature Black & White Dual Finish (Core Differentiator)

• Black Oxide Cutting Edge: The flute and cutting edge are treated with industrial black oxide, enhancing wear resistance, reducing friction, and improving chip evacuation for smoother, faster drilling

• Polished White Shank: The bright polished shank provides excellent corrosion and rust resistance, extending shelf and service life in harsh workshop and outdoor environments

• Instant Visual Identification: The high-contrast black & white design makes these drill bits instantly recognizable in crowded toolboxes and on job sites, reducing tool loss and saving time for workers

Universal 1/4″ Quick Change Hex Shank

• Fully compatible with all standard 1/4″ quick-change chucks, impact drivers, cordless drills, and automated tool changers

• One-click tool release for 50% faster tool changes, minimizing downtime in high-volume production and on-site work

• Anti-slip hex design prevents shank rounding and slippage even under maximum torque loads

Precision Fully Ground Manufacturing

• Ultra-tight dimensional tolerance and near-perfect concentricity, eliminating radial runout for straight, round, burr-free holes

• Consistent batch-to-batch performance, critical for automated production lines to reduce scrap rates and unplanned downtime

• Smooth flute surface for efficient chip removal, preventing clogging even during deep-hole drilling

135° Self-Centering Split Point

• True self-centering capability eliminates the need for pre-drilling or center punching, preventing drill wander and ensuring precise hole placement

• Reduced cutting thrust lowers stress on both the drill bit and your power tools, extending equipment lifespan

• Faster penetration in a wide range of materials, boosting overall productivity

Metric size

Imperial size