Round Needle File for Precision Detail Work and Deburring

When your work demands filing inside holes, curved slots, or tight radiused openings, a round-profile tool is the only shape that makes full contact with the surface you need to refine. This Teng Tools offering measures 160 mm (6.3 in) overall and weighs just 15 g, keeping it compact and light enough for extended precision sessions at the bench or in the field.

The tapered round cross-section lets you match the cutting surface to the diameter of the opening. Start with light passes near the narrower tip for controlled touch-up, then move to the wider body when you need to remove more material. That progressive geometry makes this tool effective for enlarging pilot holes, easing press-fit bores, cleaning flash from castings, and blending fillet radii on machined parts.

Tradesmen across trades — locksmiths, gunsmiths, jewelers, electronics technicians, and general machinists — keep a dedicated round profile on the bench because it addresses curved interior geometry that flat, square, and triangular profiles simply cannot reach. Sold individually, this listing lets you stock exactly the shape you use most, replace a worn favorite without re-buying an entire assortment, or assemble a custom selection of only the profiles your shop actually needs.

At 160 mm (6.3 in), the tool fits comfortably in a drawer, tool roll, or even a shirt pocket, so it is always within arm's reach when a quick deburring pass or smoothing touch is called for. The 15 g weight keeps hand fatigue low during repetitive detail work, letting you maintain the steady, controlled strokes that produce a clean finish.