Double Side Drill Bits

SMT DOUBLE-END | Double Side Drill Bits

An ultra-efficient lineup of double-ended twist drill bits forged from premium High Speed Steel (HSS). Boasting active cutting flutes on both ends, these silver-tone bits provide twice the operational output, delivering rapid chip clearance and high break-resistance across commercial sheet metal drilling and general steel fabrication arrays.

Core Alloy: Industrial HSS

Finish Tone: Polished Silver Tone

Bit Type: Double End Twist

Size Spectrum: 3.3mm / 4.1mm / 4.9mm

✔ Twin tip logic significantly cuts down operational tooling costs for industrial facilities.
✔ Seamlessly structured into high-density wholesale boxes for direct merchant deployment.

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Description

DUAL-ENDED HIGH EFFICIENCY PRODUCTION LINE

DOUBLE SIDE DRILL BITS SERIES

Premium High Speed Steel Double-End Twist Drill Bits

Double your drilling operational efficiency and maximize tool lifespan with the high-output design of the Industrial Double Side Drill Bit Series. Forged from ultra-tough High Speed Steel (HSS) and finished in a clean industrial silver-tone coat, these robust double-ended twist drill bits are engineered specifically to survive high-torque cycles on fast-paced industrial floors. Highly preferred for sheet metal drilling, high-speed automotive assembly, rivet hole preparation, steel structural sections, hardwoods, and high-density polymer drilling, this configuration ensures you can instantly flip the bit to access a fresh cutting edge. Pre-configured into standardized high-precision engineering gauges including 3.3mm, 4.1mm, and 4.9mm specialized sizing, this lineup features uniform bulk wholesale packaging to seamlessly support volume commercial supply stores and specialized B2B retail setups.

Engineered Benefits

✓ Twin Cutting Flutes: Features high-precision cutting geometries on both ends, effectively offering two functional drill bits in a single solid tool body for absolute cost efficiency.

✓ Rapid Chip Evacuation: The short, highly-stable spiral flute design provides optimal rigidity, minimizing structural flex, deflection, or tip breakage under sudden manual thrust.

✓ Strict Commercial Grade Packing: Organized systematically into dense 100-piece internal distribution boxes and robust 2,000-piece master export cartons to support frictionless industrial logistical workflows.

Technical Product Matrix (High-Demand Sizing)

Size (Diameter)	Per Internal Box	Per Master Carton	Core Profile Application
3.3 mm	100 Pcs	2,000 Pcs	Sheet Metal / Pop-Rivet Prep
4.1 mm	100 Pcs	2,000 Pcs	Automotive Panels / Standard Alloy
4.9 mm	100 Pcs	2,000 Pcs	Heavy Fabrication / Steel Structural

Core Series Specifications:

• Tool Segment: Double End Twist Drill Bit • Material Composition: High Speed Steel (HSS) • Color Finish: Industrial Silver Tone • Primary Applications: Metal Drilling, Steel, Seasoned Wood & Composites • Length Configurations: 3.3mm, 4.1mm, 4.9mm Sizing Limits