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24 Cards in this Set
- Front
- Back
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What type of drill press is used for large work |
Radial arm drill press |
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The drilling machine that allows quick lowering and raising of the head |
Radial arm |
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Upright drill presses have a |
Power quill feed |
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The size of a sensitive drill press is stated by the |
Distance from the center of the chuck to the column |
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The operation of opening a hole to an accurate size and good surface finish |
Reaming |
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When a tapping operation is formed under power in a drill press what is used |
A tapping attachment |
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Upright drill presses can hold |
Taper shank and straight shank drills |
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A sensitive drill press has what kind of feed |
Hand feed only |
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General purpose drill bit included angle |
118° |
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The three main parts of a drill |
Point shank and body |
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When counterboring the speed should be approximately _____ that used for drilling |
1/4 |
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The web thickness on a twist drill ______ from point to shank |
Increases |
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What part of the drill is responsible for admitting cutting fluid |
Flutes |
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The size of a #26 drill is ____ compared to a #27 |
Larger in diameter |
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What is the size range of the lettered twist drill set? |
0.234"-0.413" in diameter |
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What formed the cutting edges of the drill |
Flutes |
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The size of a twist drill should be measured where |
On the margins |
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When should you start with a pilot hole? |
When drilling large holes |
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What causes the drill to turn blue? |
Excessive drilling speed |
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What allows the chips to exit on a drill |
The flutes |
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How do you calculate rpm with metric dimensions |
Rpm = (CS x 320)/D |
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What causes a squealing noise from your drill |
Excessive drilling speed |
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How do you calculate rpm in imperial |
RPM = (CS x 4 ) / D |
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What causes the edges of a drills margins and chisel point to break down |
Excessive drilling speed. |
