A-A-51135A
TABLE I. Sawing test requirements.
|
Hole saw size |
Number of holes to be sawed |
Maximum time allowed for each hole cut |
|
9 through 16 |
10 |
35 seconds |
|
17 through 32 |
6 |
70 seconds |
|
33 through 48 |
5 |
100 seconds |
|
50 through 64 |
4 |
140 seconds |
|
66 through 96 |
3 |
205 seconds |
3.6.5 Hole saw concentricity and tooth crest runout. Hole saw concentricity and tooth crest runout shall not exceed the tolerances contained in table II.
TABLE II. Tolerances for hole saw concentricity and tooth crest runout.
|
Hole saw sizes |
Concentricity of saw body (inches) |
Radial tooth crest runout (inches) |
|
|
Longitudinal seam |
Total runout |
||
|
9 through 30 |
0.030 |
0.010 |
0.030 |
|
32 through 62 |
0.040 |
0.010 |
0.040 |
|
64 through 96 |
0.060 |
0.010 |
0.060 |
3.7 Arbors.
3.7.1 Standard arbors. Standard arbors shall be manufactured of steel.
3.7.1.1 Type III, style V standard arbors. Type III, style V standard arbors shall have a 1/4 inch hexagonal shank attached to the hole saw cap by means of 1/2-20 external threads. The arbor body diameter shall be of sufficient section to resist breakage with provisions to receive and secure a 1/4 inch pilot drill. The pilot drill may extent through the arbor in lieu of the hexagonal shank.
3.7.1.2 Type III, Style W standard arbors. Type III, style W standard arbors shall have a 7/16 inch hexagonal shank attached to the hole saw cap by means of 1/2-20 external threads. The arbor body diameter shall be of sufficient section to resist breakage with provisions to receive and secure a 1/4 inch pilot drill.
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