Machinery's Handbook, 31st Edition
Reamers
929
Taper Pipe Reamers—Spiral Flutes ANSI/ASME B94.2-1995 (R2015)
D
C
B
A
Diameter
Shank Diameter D 0.4375 0.5625 0.7000 0.6875 0.9063 1.1250 1.3125 1.5000 1.8750
Size of Square 0.328 0.421 0.531 0.515 0.679 0.843 0.984 1.125 1.406
Length Overall A
Flute Length B
Square Length C
Nom. Size
Large End
Small End
No. of Flutes
0.362 0.316 0.472 0.406 0.606 0.540 0.751 0.665 0.962 0.876 1.212 1.103 1.553 1.444 1.793 1.684 2.268 2.159
4 to 6 4 to 6 4 to 6 4 to 6 6 to 10 6 to 10 6 to 10 6 to 10 8 to 12
2 1 ⁄ 8 2 7 ⁄ 16 2 9 ⁄ 16 3 1 ⁄ 8 3 1 ⁄ 4 3 3 ⁄ 4
3 ⁄ 4
3 ⁄ 8
1 ⁄ 8 1 ⁄ 4 3 ⁄ 8 1 ⁄ 2 3 ⁄ 4
1 1 ⁄ 16 1 1 ⁄ 16 1 3 ⁄ 8 1 3 ⁄ 8
7 ⁄ 16
1 ⁄ 2 5 ⁄ 8
11 ⁄ 16 13 ⁄ 16 15 ⁄ 16
1
1 3 ⁄ 4 1 3 ⁄ 4 1 3 ⁄ 4 1 3 ⁄ 4
4
1 1 ⁄ 4 1 1 ⁄ 2
1
4 1 ⁄ 4 4 1 ⁄ 2
2
1 1 ⁄ 8
All dimensions are given in inches. These reamers are tapered 3 ⁄ 4 inch per foot and are intended for reaming holes to be tapped with American National Standard Taper Pipe Thread taps. Material is high-speed steel. Reamers are standard with left-hand spiral flutes. Tolerances: On length overall A and flute length B , 1 ⁄ 8 - to 3 ⁄ 4 -inch size, incl., ± 1 ⁄ 16 inch; 1- to 1 1 ⁄ 2 -inch size, incl., ± 3 ⁄ 32 inch; 2-inch size, ± 1 ⁄ 8 inch. On length of square C , 1 ⁄ 8 - to 3 ⁄ 4 -inch size, incl., ± 1 ⁄ 32 inch; 1- to 2-inch size, incl., ± 1 ⁄ 16 inch. On shank diameter D , 1 ⁄ 8 -inch size, - .0015 inch; 1 ⁄ 4 - to 1-inch size, incl., - .002 inch; 1 1 ⁄ 4 - to 2-inch size, incl., - .003 inch. On size of square, 1 ⁄ 8 -inch size, - .004 inch; 1 ⁄ 4 - to 3 ⁄ 4 -inch size, incl., - .006 inch; 1- to 2-inch size, incl., - .008 inch. B & S Taper Reamers—Straight and Spiral Flutes, Squared Shank Taper No. a Dia., Small End Dia., Large End Overall Length Square Length Flute Length
Dia. of Shank
Size of Square 0.210 0.255 0.305 0.330 0.420 0.470 0.560 0.610 0.750 0.845
No. of Flutes 4 to 6 4 to 6 4 to 6 4 to 6 4 to 6 4 to 6 6 to 8 6 to 8 6 to 8 6 to 8
1 2 3 4 5 6 7 8 9
0.1974 0.2474 0.3099 0.3474 0.4474 0.4974 0.5974 0.7474 0.8974 1.0420
0.3176 0.3781 0.4510 0.5017 0.6145 0.6808 0.8011 0.9770 1.1530 1.3376
2 7 ⁄ 8 3 1 ⁄ 8 3 3 ⁄ 8
4 3 ⁄ 4 5 1 ⁄ 8 5 1 ⁄ 2 5 7 ⁄ 8 6 3 ⁄ 8 6 7 ⁄ 8 7 1 ⁄ 2 8 1 ⁄ 8 8 7 ⁄ 8 9 3 ⁄ 4
1 ⁄ 4
9 ⁄ 32
5 ⁄ 16
11 ⁄ 32 13 ⁄ 32
3 ⁄ 8
3 11 ⁄ 16
7 ⁄ 16
7 ⁄ 16 9 ⁄ 16
4
1 ⁄ 2 5 ⁄ 8 3 ⁄ 4
4 3 ⁄ 8 4 7 ⁄ 8 5 1 ⁄ 2 6 1 ⁄ 8 6 7 ⁄ 8
5 ⁄ 8 3 ⁄ 4
13 ⁄ 16
13 ⁄ 16
1
7 ⁄ 8
1
10
1 1 ⁄ 8
a For taper per foot, see Table 10 on page 1023 . These reamers are no longer ANSI/ASME Standard.
All dimensions are given in inches. Material is high-speed steel. The chamfer on the cutting end of the reamer is optional. All reamers are finishing reamers. Spiral flute reamers are standard with left-hand spiral flutes. (Tapered reamers, especially those with left-hand spirals, should not have circular lands because cutting must take place on the outer diameter of the tool.) B & S taper reamers are designed for use in reaming out Brown & Sharpe standard taper sockets. Tolerances: On length overall A and flute length B , taper nos. 1 to 7, incl., ± 1 ⁄ 16 inch; taper nos. 8 to 10, incl., ± 3 ⁄ 32 inch. On length of square C , taper nos. 1 to 9, incl., ± 1 ⁄ 32 inch; taper no. 10, ± 1 ⁄ 16 inch. On shank diameter D , - .0005 to - .002 inch. On size of square, taper nos. 1 to 3, incl., - .004 inch; taper nos. 4 to 9, incl., - .006 inch; taper no. 10, - .008 inch.
Copyright 2020, Industrial Press, Inc.
ebooks.industrialpress.com
Made with FlippingBook - Share PDF online