C.R. Laurence Co., Inc.
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Catalog Number: UB2

  • Perfectly Round Holes in Thin Materials

  • Drill Up to 13 Diameters with Just One Drill

  • The CRL Unibit Step Drill uses a unique, single flute design to drill perfectly round holes in materials up to 1/8" (3.2 mm) thick. Cutting steps of progressively larger diameters make it possible to drill up to 13 different hole sizes with a single bit. Also, the hole is automatically deburred by the cutting edge of the next size up.

    CRL Unibit® 3/16" to 1/2" Step Drill


    Other Products/Finishes:

    UB1 CRL Unibit® 1/8" to 1/2" Step Drill
    UB2 CRL Unibit® 3/16" to 1/2" Step Drill
    UB3 CRL Unibit® 1/4" to 3/4" Step Drill
    UB123 CRL Unibit® Step Drill 3 Piece Set

    Catalog Number:UB2
    Also Available in These Catalogs:
    CRL73R Tools, Machinery, and Equipment, PAGE 489K
    CRL43 Auto Glass Tools and Hardware, PAGE A371
    GG2014A European Glass & Glazing, PAGE TE119
    Diameters:3/16" to 1/2" (4.8 to 12.7 mm)
    Ship Via:Can Ship UPS
    Shipping Weight:8 oz (227g)

    Hole starting is easy because it won't skid across the surface, even without center punching. Designed for use with steel, copper, brass, aluminum, and other thin metals, it can also be used on plastics without chipping or clogging.

    Most shipping weights are approximate and have not been verified. If the exact weight is needed in order to determine shipping costs, and shipping costs are required in order for you to complete your order, please request this prior to submitting your order by contacting CRL Customer Service. Product images shown are of the actual product or a close representation. ColorsColours can vary depending on your computer's video card and on how your monitor's colorcolour is adjusted.