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techtalk:ref:tools147 [2019/05/09 21:57] hippysmack [Pre-Ream Drill Hole Size Chart] |
techtalk:ref:tools147 [2020/04/28 23:00] hippysmack ↷ Links adapted because of a move operation |
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* [[techtalk:ref:genmsr11|Cutting Oils, Soaking Oils and Lubes]] | * [[techtalk:ref:genmsr11|Cutting Oils, Soaking Oils and Lubes]] | ||
- | * [[techtalk:ref:svcproc40#general_drilling_and_tapping|General Drilling and Tapping]] | + | * [[techtalk:ref:tools030#general_drilling_and_tapping|General Drilling and Tapping]] |
====== Types of Reamers ====== | ====== Types of Reamers ====== | ||
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Most do not have time or money to wait for a special size drill bit to be made. \\ | Most do not have time or money to wait for a special size drill bit to be made. \\ | ||
You are usually forced to choose among standard drill bit sizes that are on the shelf. \\ | You are usually forced to choose among standard drill bit sizes that are on the shelf. \\ | ||
- | A Pre-Ream Drill Hole Size Chart below to help with this selection. Click here to download a printable PDF of the Pre-Ream-Drill-Hole-Size-Chart. This chart tells the appropriate standard drill bit size to choose when reaming fractional diameters from 1/8” to 1” in 1/64” increments. This chart allows for drill oversize based on research done by the United States Cutting Tool Institute. | + | A Pre-Ream Drill Hole Size Chart is provided below. \\ |
+ | The chart tells the appropriate standard drill bit size to choose when reaming fractional diameters from 1/8” to 1” in 1/64” increments. \\ | ||
===== Pre-Ream Drill Hole Size Chart ===== | ===== Pre-Ream Drill Hole Size Chart ===== | ||
- | From Rock River Tool Inc. ((https://www.rockrivertool.com/documents/pre-ream-drill-size-chart.pdf)) | + | A PDF of this chart can be downloaded from Rock River Tool Inc. ((https://www.rockrivertool.com/documents/pre-ream-drill-size-chart.pdf)) |
^Reamer diameter \\ fraction - decimal (nom)^Hole size \\ to leave 2%^Drill size \\ to leave 2%^Hole size \\ to leave 3%^Drill size \\ to leave 3%^ | ^Reamer diameter \\ fraction - decimal (nom)^Hole size \\ to leave 2%^Drill size \\ to leave 2%^Hole size \\ to leave 3%^Drill size \\ to leave 3%^ | ||
|1/8" - .1250"|.1225"|31|.1213"|3.0mm| | |1/8" - .1250"|.1225"|31|.1213"|3.0mm| |