Aircraft 1/4 Shank Counterbores

Aircraft 1/4 Shank Counterbores

Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or less), the operations is usually known as spot-facing; for example, a flat seat for a bolt head or nut. If, on the other hand, the hole is enlarged to a considerable depth, it is designated as counterboring. These counterbores are made of two-piece construction, having an integral shank and counterbore-cutter, and a pilot that is interchangable, which provides flexibility in the use of the tool.

  • 1/4 X 3/32 HSS Aircraft Counterbore 1/4 Shank

    Qualtech

    1/4" X 3/32" HSS Aircraft Counterbore 1/4" Shank

    List Price: $42.32
    Price: $21.16
    1/4" X 3/32" HSS Aircraft Counterbore 1/4" Shank. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or less), the operations is usually known as spot-facing; for example,...
    DEWA/CCBR1/4
    List Price: $42.32
    Price: $21.16
  • 3/8 X 3/32 HSS Aircraft Counterbore 1/4 Shank

    Qualtech

    3/8" X 3/32" HSS Aircraft Counterbore 1/4" Shank

    List Price: $44.53
    Price: $22.27
    3/8" X 3/32" HSS Aircraft Counterbore 1/4" Shank. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or less), the operations is usually known as spot-facing; for example,...
    DEWA/CCBR3/8
    List Price: $44.53
    Price: $22.27
  • 7/16 X 1/8 HSS Aircraft Counterbore 1/4 Shank

    Qualtech

    7/16" X 1/8" HSS Aircraft Counterbore 1/4" Shank

    List Price: $46.89
    Price: $23.45
    7/16" X 1/8" HSS Aircraft Counterbore 1/4" Shank. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or less), the operations is usually known as spot-facing; for example,...
    DEWA/CCBR7/16
    List Price: $46.89
    Price: $23.45
  • 1/2 X 1/8 HSS Aircraft Counterbore 1/4 Shank

    Qualtech

    1/2" X 1/8" HSS Aircraft Counterbore 1/4" Shank

    List Price: $49.20
    Price: $24.60
    1/2" X 1/8" HSS Aircraft Counterbore 1/4" Shank. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or less), the operations is usually known as spot-facing; for example,...
    DEWA/CCBR1/2
    List Price: $49.20
    Price: $24.60
  • 9/16 X 1/8 HSS Aircraft Counterbore 1/4 Shank

    Qualtech

    9/16" X 1/8" HSS Aircraft Counterbore 1/4" Shank

    List Price: $57.42
    Price: $28.71
    9/16" X 1/8" HSS Aircraft Counterbore 1/4" Shank. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or less), the operations is usually known as spot-facing; for example,...
    DEWA/CCBR9/16
    List Price: $57.42
    Price: $28.71