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    Reamers

    Uploaded by

    Puneeth Kumar
    Reamers are precision tools used to refine drilled holes to a tight tolerance of ±0.0003 inches. They can be used for press fit and slip fit holes. The document provides tips on using reamers such as checking for damage, recommended drill sizes for different hole diameters, proper speeds and feeds, and lubrication. It also includes charts listing available reamer sizes in both imperial and metric units as well as the suggested drill size to ream to for different fits.

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    © All Rights Reserved

    Reamers

    Uploaded by

    Puneeth Kumar
    154 views2 pages
    Reamers are precision tools used to refine drilled holes to a tight tolerance of ±0.0003 inches. They can be used for press fit and slip fit holes. The document provides tips on using reamers such as checking for damage, recommended drill sizes for different hole diameters, proper speeds and feeds, and lubrication. It also includes charts listing available reamer sizes in both imperial and metric units as well as the suggested drill size to ream to for different fits.

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    reamers.ppt

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    Reamers are precision tools used to refine drilled holes to a tight tolerance of ±0.0003 inches. They can be used for press fit and slip fit holes. The document provides tips on using reamers such as checking for damage, recommended drill sizes for different hole diameters, proper speeds and feeds, and lubrication. It also includes charts listing available reamer sizes in both imperial and metric units as well as the suggested drill size to ream to for different fits.

    Copyright:

    © All Rights Reserved
    154 views2 pages

    Reamers

    Uploaded by

    Puneeth Kumar
    Reamers are precision tools used to refine drilled holes to a tight tolerance of ±0.0003 inches. They can be used for press fit and slip fit holes. The document provides tips on using reamers such as checking for damage, recommended drill sizes for different hole diameters, proper speeds and feeds, and lubrication. It also includes charts listing available reamer sizes in both imperial and metric units as well as the suggested drill size to ream to for different fits.

    Copyright:

    © All Rights Reserved
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    REAMERS

    Purpose: Use a reamer to refine the size of a pre-


    drilled hole, accurate to ±0.0003 inches. Reamers can be
    used for press fit and slip fit holes. Read more from
    Gray Shop Toolbox
    Chadwick Reamers
    Tips for use:
    • Check the quality of the Reamer before and after use for damage, as it is a very
    precise tool.
    •For hole sizes less than ½ inch, drill 1/64 inch less than reamer size.
    • For hole sizes greater than ½ and less than 1 inch, drill 1/32 inch less than reamer
    size.
    • For holes greater than an inch in diameter, it is more accurate to use a boring tool
    than a reamer.
    ½” press fit hole
    •Ream at ½ of the Drilling RPM.
    •Use plenty of machine oil.
    •Ream with a steady, slow plunge rate.
    •Adjustable and taper reams are also available. ½” slip fit hole
    REAMERS SIZES
    Reamer Sizes availabe in UI ME Machine Shop
    SIZES IN INCHES

    Grey Box Set

    Reamer Precision Fit Suggested Reamer Precision Fit Suggested Precision Fit Suggested
    Fit Fit Reamer size Fit
    size Pin size Drill Size size Pin size Drill Size Pin size Drill Size

    0.0615 Press 0.3990 Press A 0.234 Exact


    0.0620 1/16 3/64 Press 0.4010 13/32 25/64 Press B 0.238 15/64 7/32 Slip
    0.0635 Slip 0.4060 Exact C 0.242 Slip
    0.0925 Press 0.4365 Press D 0.246 Press
    0.0938 3/32 5/64 Exact 0.4375 28/64 27/64 Exact E 0.250 1/4 15/64 Exact
    0.0945 Slip 0.4385 Slip F 0.257 Slip
    0.1240 Press 0.4980 Press G 0.261 Press
    0.1250 Exact 0.4990 Press H 0.266 17/64 1/4 Exact
    1/8 7/64 1/2 31/64
    0.1260 Slip 0.5000 Exact I 0.272 Slip
    0.1270 Slip 0.5010 Slip J 0.277 Press
    9/32 17/64
    0.1425 9/64 1/8 Slip 0.5500 Press K 0.281 Slip
    18/32 17/32
    0.1562 5/32 9/64 Exact 0.5625 Exact L 0.290 Press
    0.1865 Press 0.6240 Press M 0.295 19/64 9/32 Exact
    3/16 11/64
    0.1885 Slip 0.6250 Exact N 0.302 Slip
    20/32 19/32
    0.1975 13/64 3/16 Press 0.6260 Slip O 0.316 5/16 19/64 Slip
    0.2480 Press 0.6299 Slip P 0.323 Press
    21/64 5/16
    0.2490 Press 0.6875 11/16 21/32 Exact Q 0.332 Slip
    0.2495 Press 0.7500 3/4 23/32 Exact R 0.339 Press
    11/32 21/64
    0.2497 1/4 15/64 Press 0.7813 25/32 3/4 Exact S 0.348 Slip
    0.2500 Exact 0.8125 13/16 25/32 Exact T 0.358 23/64 11/32 Press
    0.2510 Slip 0.8747 Press U 0.368 Press
    7/8 27/32 3/8 23/64
    0.2520 Slip 0.8750 Exact V 0.377 Exact
    0.3115 Press 1.0000 1 31/32 Exact W 0.386 Press
    25/64 3/8
    0.3125 5/16 19/64 Exact 1.1250 1 1/8 1 3/32 Exact X 0.397 Slip
    0.3135 Slip 1.2500 1 1/4 1 7/32 Exact Y 0.404 Press
    13/32 25/64
    0.3250 21/64 5/16 Press 1.5000 1 1/2 1 15/32 Exact Z 0.413 Slip
    0.3730 Press 1.8750 1 7/8 1 27/32 Exact
    0.3740 Press
    3/8 23/64
    0.3750 Exact
    0.3760 Slip
    **Sizes and fits given above are only suggested, but, reamers may be used with other sizes as needed

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