Machinery's Handbook, 31st Edition
922 Reamers Taper Shank Jobbers Reamers—Straight Flutes ANSI/ASME B94.2-1995 (R2015)
B
A
Reamer Diameter
No. of Flutes
Length Overall A
Length of Flute B
No. of Morse Taper Shank a
Fractional
Dec. Equiv.
0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.6875 0.7500 0.8125 0.8750 0.9375 1.0000 1.0625 1.1250 1.1875 1.2500 1.3750 1.5000
2
1 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4
6 to 8 6 to 8 6 to 8 6 to 8
5 3 ⁄ 16 5 1 ⁄ 2 5 13 ⁄ 16 6 1 ⁄ 8 6 7 ⁄ 16 6 3 ⁄ 4 7 9 ⁄ 16 8 13 ⁄ 16 9 3 ⁄ 16 10 3 ⁄ 8 10 5 ⁄ 8 10 7 ⁄ 8 11 1 ⁄ 8 8 8 3 ⁄ 8 10
1 ⁄ 4
2 1 ⁄ 4 2 1 ⁄ 2 2 3 ⁄ 4
5 ⁄ 16
3 ⁄ 8
7 ⁄ 16
3
6 to 8 6 to 8 6 to 8 8 to 10 8 to 10 8 to 10 8 to 10 8 to 10 8 to 10 8 to 10 8 to 10 8 to 12 8 to 12 10 to 12 10 to 12
1 ⁄ 2
3 1 ⁄ 4 3 1 ⁄ 2 3 7 ⁄ 8 4 3 ⁄ 16 4 9 ⁄ 16 4 7 ⁄ 8 5 1 ⁄ 8 5 7 ⁄ 16 5 5 ⁄ 8 5 13 ⁄ 16 6 1 ⁄ 8 6 5 ⁄ 16 6 1 ⁄ 2 6
9 ⁄ 16
5 ⁄ 8
11 ⁄ 16
3 ⁄ 4
13 ⁄ 16
7 ⁄ 8
15 ⁄ 16
1
1 1 ⁄ 16 1 1 ⁄ 8 1 3 ⁄ 16 1 1 ⁄ 4 1 3 ⁄ 8 1 1 ⁄ 2
12 9 ⁄ 16 12 13 ⁄ 16 13 1 ⁄ 8
a American National Standard self-holding tapers (Table 7a on page 1020 .) All dimensions in inches. Material is high-speed steel. Tolerances: On reamer diameter, 1 ⁄ 4 -inch size, +.0001 to +.0004 inch; over 1 ⁄ 4 - to 1-inch size, incl., +.0001 to +.0005 inch; over 1-inch size, +.0002 to +.0006 inch. On overall length A and length of flute B , 1 ⁄ 4 - to 1-inch size, incl., ± 1 ⁄ 16 inch; and 1 1 ⁄ 16 - to 1 1 ⁄ 2 -inch size, incl., ± 3 ⁄ 32 inch. American National Standard Driving Slots and Lugs for Shell Reamers or Shell Reamer Arbors ANSI/ASME B94.2-1995 (R2015)
L
W
J
M
Lug on Arbor
Driving Slot
Arbor Size No.
Fitting Reamer Sizes
Reamer Hole Dia. at Large End
Width W
Depth J
Width L
Depth M
0.375 0.500 0.625 0.750 1.000 1.250
4 5 6 7 8 9
3 ⁄
5 ⁄ 3 ⁄ 3 ⁄ 1 ⁄ 1 ⁄ 5 ⁄
3 ⁄ 1 ⁄ 1 ⁄ 5 ⁄ 5 ⁄
9 ⁄
5 ⁄ 7 ⁄ 7 ⁄ 9 ⁄ 9 ⁄
4
32 16 16
16
64
32 32 32 32 32
16 to 1
13 ⁄
11 ⁄ 11 ⁄ 15 ⁄ 15 ⁄ 19 ⁄
4 4
64 64 64 64 64
16 to 1 16 to 1
1 1 ⁄ 1 5 ⁄
1 ⁄ 5 ⁄
4 8
4 4
16 16
16 to 2
1 11 ⁄
16 to 2
2 1 ⁄
1 ⁄
3 ⁄
11 ⁄
2
16
8
32
All dimension are given in inches. The hole in shell reamers has a taper of 1 ⁄ 8 inch per foot, with arbors tapered to correspond. Shell reamer arbor tapers are made to permit a driving fit with the reamer.
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