Grobet USA® Swiss Pattern Precision Files - Half-Round

SKU: 630-0402

Length of Cut: 4"
Cut: 00


Tapered in width and thickness, coming to a point. Double cut on both sides.

Length of Cut* Width x Thickness Available Cuts
4" (100mm) 15/32" x 9/64" 00, 0, 2, 3, 4
6" (150mm) 19/32" x 3/16" 00, 0, 1, 2, 3,  4, 6
8" (200mm) 13/16" x 5/16" 00, 0, 1, 2, 4
* The handle section (tang) is not considered in the file length.

About Swiss Pattern Precision Files . . .
Manufactured to precise production standards, using a combination of machine cutting and hand craftsmanship to produce the most accurate, best cutting and longest-lasting files in the world. They are made of the finest heat-tempered, chrome alloy steel and have the right feel, action and balance desired by all true craftsmen. Swiss Pattern Precision Files deliver superior performance on all metal. Made in Italy. Simply the best you can buy.
File selection cannot be reduced to a formula or table but is based to a great degree on experience. However, the chart below gives you a great starting point for file selection.

Basic Application Type of File
Corners, holes, edges Three-Square
Corners, holes Square
Corners, slots Equalling
Curved surfaces, corners, holes Half-Round
Curved surfaces, junctures of curved and flat surfaces, corners, holes Crossing
Flat surfaces Hand
Flat surfaces, corners, keyways dovetail ways,
gear teeth, deburring
Flat surfaces, slots Pillar
Roughening surfaces for hand grips Checkering
Rounded corners, slots, flat surfaces,
junctures between curved and flat surfaces
Rounded corners, holes, "V" slots Pippin
Rounded inside corners, holes Round Parallel
Round Tapered
Slots Screwhead
Slots Warding
Slots, wedge-shaped openings Knife

Keep in mind, there is more to file selection than shape alone. Selecting the correct cut to use is determined by the type of the metal you’re working on, as well as the amount of material to be removed and your desired finish. For example, rapid removal of stock often indicates a cut 00, while working on narrow surfaces would suggest a cut 2 and a fine cut such as cut 4 or cut 6 would be used for final finishing operations.

Types of Files

Swiss Pattern Precision Files: The original Swiss files made in hundreds of shapes and sizes.

Swiss Needle Files: A group of files of various cross-sections with a knurled, round handle. Knurling gives the file a positive, non-slip grip for precision filing.

Escapement Files: Also called small Square Handled Needle Files. A group of files of various cross-sectioned shapes with a length of cut varying from 3/4" to 2-1/2", with square handles.

Rifflers: Originally used and hand forged by die sinkers, die makers, silversmiths, etc., in shapes and cross-sections appropriate to their work. Teeth are cut on small areas on each end and can have a variety of shapes. A long middle portion serves as the handle.

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