Grobet Swiss Pattern Precision Files: Crochet

$28.46 - $33.60
1 - 11
12 +
Total ---
Tapered in width and gradually tapered in thickness. Used in filing junctions between a flat and curved surface. Useful in developing slots with rounded edges. Double cut top and bottom – both edges are single cut.


Length of Cut* Width x Thickness Available Cuts
4" (100mm) 6" (150mm) 5/16" x 3/32" 13/32" x 9/64" 2 00, 0, 2
* 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 metals.Made in Italy. Simply the best you can buy.
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    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 Recommended
    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 Barrette
    Flat surfaces, slots Pillar
    Roughening surfaces for hand grips Checkering
    Rounded corners, slots, flat surfaces, junctures between curved and flat surfaces Crochet
    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.