Grobet USA Swiss Pattern 6-1/4" Half-Round Needle File

Designed for precise shaping, filing, and refinement of both flat and curved surfaces, these Grobet USA Swiss Pattern half-round needle files combine a flat face with a rounded face for versatile precision work.

The half-round profile tapers toward the point, allowing greater access to inside curves, rounded openings, concave surfaces, and confined areas. Both working surfaces are cut, making the file useful for shaping and refining flat surfaces as well as curved profiles.

At 6-1/4" (160mm) overall, these files provide a comfortable combination of reach and control for jewelry making, watch and clock work, model making, precision metalworking, and other detailed bench applications.

Choose from Cut 00, Cut 0, Cut 2, or Cut 4 to match the amount of material removal and surface finish required.

Features & Benefits

Half-Round Profile: Combines a flat face and rounded face for working on both flat and curved surfaces.
Tapered Shape: Narrows toward the point for access to small openings, inside curves, and confined areas.
Four Cut Options: Choose Cut 00, 0, 2, or 4 for progressive shaping, refinement, and finishing.
6-1/4" Overall Length: Provides useful reach while maintaining control for detailed work.
Precision Filing: Well suited for small components and applications where controlled material removal is important.
Round Knurled Handle: Integral handle provides a secure grip without requiring a separate file handle.
Swiss Pattern Precision: Manufactured for accurate shape, balance, and consistent filing performance.

Specifications

Brand: Grobet USA
File Type: Swiss Pattern Needle File
Profile: Half-Round
Overall Length: 6-1/4" (160mm)
Width: 7/32" (5.6mm)
Thickness: 5/64" (1.8mm)
Handle: Round knurled
Available Cuts: 00, 0, 2, and 4

Cut Options

Cut 00 – 31.524: Extra-coarse cut for aggressive material removal and initial shaping.
Cut 0 – 31.525: Coarse cut for shaping and faster material removal.
Cut 2 – 31.527: Medium cut for general-purpose precision filing and controlled refinement.
Cut 4 – 31.529: Fine cut for detailed refinement and smoother finishing.

Ideal For

Jewelry making and repair
Filing inside curves and rounded openings
Shaping concave surfaces
Filing small flat surfaces
Watch and clock work
Precision metalworking
Small component fabrication
Model making
Toolmaking
Detailed work under magnification

Frequently Asked Questions

What is a half-round needle file used for?
A half-round needle file combines a flat face with a rounded face, making it useful for filing flat surfaces, inside curves, concave areas, rounded openings, and other detailed shapes.

What is the difference between Cut 00, 0, 2, and 4?
The cuts progress from coarser to finer. Cut 00 provides the most aggressive material removal, Cut 0 is suited for coarse shaping, Cut 2 provides a versatile medium cutting action, and Cut 4 is designed for finer refinement and finishing.

Which cut should I choose for initial shaping?
Cut 00 provides the most aggressive material removal. Cut 0 is also a good choice for shaping when a slightly less aggressive cutting action is preferred.

Which cut is best for general-purpose precision filing?
Cut 2 provides a useful balance between material removal and surface refinement, making it a versatile choice for general precision work.

Which cut should I choose for finer finishing?
Cut 4 is the finest option offered on this page and is best suited for detailed refinement and smoother finishing.

Does the file taper?
Yes. The half-round profile tapers toward the point, helping the file reach smaller openings, tighter curves, and confined areas.

How long are these files?
Each file measures 6-1/4" (160mm) overall.

Do these files require a separate handle?
No. Each file has an integral round knurled handle for a secure grip and precise control.

Are all four cuts included with one purchase?
No. Cut 00, 0, 2, and 4 are individual selectable variants. Choose the cut that best matches the amount of material removal and finish required.