3-13mm Twist Drill Bit Sharpener & Grinding Tool

Save dull, burnt, and worn-out drill bits from the scrap heap, restore perfect factory cutting angles, and slice through thick steel bars with clean mechanical precision. This premium multifunctional drill bit grinding sharpener is a high-utility shop attachment engineered to convert standard 100-type or 5/8-11 thread right-angle grinders into an automated, high-precision drill bit sharpening station. Manufactured with an impact-resistant structural core housing, this tool features an integrated multi-tier guide channel matrix that handles twist drill diameters from 3 mm to 13 mm. Outfitted with an internal pre-set angle alignment jig, this angle grinder powered grinding tool provides industrial machinists, automotive fabricators, and home workshop woodworkers with a fast way to restore dull bits.

Key Features

• Universal 3mm to 13mm Fitment Matrix: Precision-stamped with a progressive sequence of matching guide ports to accommodate everything from micro pilot bits up to heavy-duty 1/2 in twist drills.

• Pre-Set Angle Alignment Guides: Built with internal, angled mechanical channels that lock the drill bit at the optimal factory cutting angle against the abrasive wheel automatically.

• Angle Grinder Driven Mechanical System: Connects directly onto the spindle of standard right-angle grinders, utilizing your tool's high RPM motor for rapid steel grinding.

• Dual-Grit Diamond Core Grinding Wheel: Equipped with an internal, long-lasting diamond abrasive wheel built to reshape hard carbon steel and cobalt bits without losing profile shape.

Why Choose Our Angle Grinder Drill Sharpener Jig Attempting to sharpen twist drill bits freehand against a bench grinder is incredibly difficult, often changing the tip angle, ruining the cutting relief, and making the bit drift off-center. Using an improperly ground bit overheats the tool, dulls the edge, and can cause the bit to snap inside expensive workpieces. This advanced multifunctional drill bit polishing tool solves those alignment headaches by holding the bit firmly at the exact angle needed for a crisp edge. It restores a razor-sharp factory edge in just a few seconds, providing structural steel shops, diesel mechanics, and home renovators with a long-lasting utility asset that slashes project tooling costs.

Perfect For

• Resharpening dull, chipped, or burnt high-speed steel (HSS), cobalt, and carbon steel twist drill bits.

• Restoring worn masonry, wood-boring, and metal-cutting bits back to clean cutting performance.

• Upgrading standard workshop angle grinders into dedicated, high-speed drill maintenance platforms.

Product Specs

• Material Base: High-Density Impact-Grade Structural ABS Polymer Shell with a Carbon Alloy Framework

• Grinder Attachment Profile: Direct Spindle Alignment for Standard 100-Type / Multi-Thread Angle Grinders

• Sharpening Diameter Range: Accommodates Standard Twist Drills From 3 mm to 13 mm (approx. 1/8 in to 1/2 in) Spans

• Abrasive Core Assembly: High-Density Diamond Impregnated Core Grinding Wheel

Restore Dull Drill Bits and Stop Wasting Tooling Budgets Instantly Stop struggling with dull bits that smoke, burn, and stall out inside your metal projects. Bring rapid mechanical sharpening control and perfect factory cutting angles back to your workbench by ordering your 3-13mm drill bit sharpener jig today.