Professional Eccentric Twist Drill Bit Hard Alloy Construction ±0.1mm Tolerance Metal Fabrication Essential Tool

Features: Engineered with highly strength hardened carbides alloy (HRC65+ hardness), these eccentric drill bits deliver long lifespans than standard steel bit, ideal for metalworking and construction applications.
precise eccentric design ensures ±0.1mm drilling accuracy, making it perfect for mechanical manufacturing and electronics assembly requiring strict dimensional control.
Trusted by professional mechanics, enthusiasts, and industrial technicians for its versatilitys 6mm-12mm size ranges and 55mm drilling depth across multiple materials.
Optimized for confined space with a compactly 90mm length and lightweight build, reducing operators fatigue during extended tasks like machinery repairs or craft projects.
Achieve 500RPM cutting speeds for 60% faster workflow efficiency in production lines, backed by wear resistant hardened carbides construction for consistent performances.

Specifications: Component:hardened Steel
Diameter:Approx.6mm/0.24in, 8mm/0.32in, 10mm/0.39in, 12mm/0.47inch
4Option Type;
Process: precise processing, surfaces hardening treatments
Total length:Approx.90mm/3.54inch
Working depth:Approx.55mm/2.17in
Handle diameter:Approx.6.35mm/1/4in
Cutting speed 500RPM | 3times more wear resistance
Accuracy:±0.1mm

Package Includes: Package A
2pcs Eccentric Drill Bit
Package B
3pcs Eccentric Drill Bit
Package C
4pcs Eccentric Drill Bit

note: Please allow 1-2cm errors due to manual measurement.
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