Reamer Bits | Reamer Drill Bit | Hand Reamer Bits | RS
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    Reamer Bits

    When completing high-performance projects that require the forming of precise holes in or through materials, the sides of the hole may require additional work to ensure they are completely smooth. In this case, reamers are designed to completely smooth the hole to a high degree of accuracy.

    Due to the removal of the uneven material, reaming will slightly enlarge the hole you have created, therefore making it advisable to form the initial hole fractionally smaller to allow for the reaming space – this is called the allowance. It is recommended that the drilled hole should not be enlarged by more than 5% of the drilled diameter.

    Typically made from carbide or high-speed steel (HSS), these multi-edged rotary cutting tools are used in metalworking for enlarging and finishing holes to a high level of precision and accuracy.

    What types of reamer are there?

    At RS, we have both machine reamer bits and hand reamer bits. The main difference between the two is that hand reamer bits have a longer taper or lead in at the front end of the bit, which compensates for the difficulty of using hand power alone.

    Straight reamer bits are used to make only minor enlargements to holes, typically ones used for the force-fitting of location dowel pins or for unthreaded shoulder bolts.

    With helical/spiralled reamer bits, a clockwise reamer will pull any debris up and out of a blind hole, whereas an anti-clockwise reamer will push debris forward, which can be helpful when creating a through-hole.

    A tapered reamer is used to make a tapered hole for a tapered pin, which is a self-tightening device due to the shallow angle of the taper. They are commonly used in aircraft assembly and may only be re-reamed a small number of times during an aircraft's career.

    Combination reamers have two or more cutting surfaces, cut to resemble the part's multiple internal diameters. Using combination reamers reduces the number of separate operations as well as precisely creating relative depths and diameters.

    Adjustable reamers consist of several blades along a tapered groove that can be adjusted to cover a small range of hole sizes. They are restricted to light usage due to the absence of any spiral in the flute, meaning they will only remove minimal material for each diameter setting, and cannot be used in holes that have an axial split.

    82 Producten voor Reamer Bits

    RS PRO
    Straight
    19 → 21mm
    180 mm
    -
    -
    HSS
    -
    RS PRO
    Morse Taper
    16mm
    167 mm
    114mm
    5
    HSS
    Tapered
    RS PRO
    Morse Taper
    12mm
    152 mm
    -
    -
    HSS
    -
    RS PRO
    Straight
    15.25 → 17mm
    165 mm
    -
    -
    HSS
    -
    RS PRO
    Straight
    21 → 23mm
    85.72 mm
    -
    -
    HSS
    -
    RS PRO
    Straight
    8mm
    115 mm
    58mm
    6
    HSS
    Spiral
    RS PRO
    Morse Taper
    26mm
    184 mm
    -
    -
    HSS
    -
    RS PRO
    Morse Taper
    10mm
    127 mm
    -
    -
    HSS
    -
    RS PRO
    Straight
    17 → 19mm
    170 mm
    -
    -
    HSS
    -
    RS PRO
    Morse Taper
    22mm
    184 mm
    132mm
    5
    HSS
    Tapered
    RS PRO
    Morse Taper
    25mm
    7-1/4 in
    -
    -
    HSS
    -
    RS PRO
    Straight
    6.5 → 7mm
    85 mm
    -
    -
    HSS
    -
    RS PRO
    Morse Taper
    14mm
    152 mm
    -
    -
    HSS
    -
    RS PRO
    Morse Taper
    9.5mm
    127 mm
    -
    -
    HSS
    -
    RS PRO
    Straight
    14mm
    163 mm
    81mm
    8
    HSS
    -
    RS PRO
    Morse Taper
    13mm
    5-15/16 in
    -
    -
    HSS
    -
    RS PRO
    Straight
    10 → 10.75mm
    125 mm
    -
    -
    HSS
    -
    RS PRO
    Straight
    9.25 → 10mm
    115 mm
    -
    -
    HSS
    -
    RS PRO
    Straight
    13.75 → 15.25mm
    150 mm
    -
    -
    HSS
    -
    RS PRO
    Straight
    4mm
    76 mm
    38mm
    6
    HSS
    Spiral
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