Machine Reamers R302
Designed with left helix and right cutting flutes with unequal flute design. Downward chip evacuation. Application for reaming different steels below 48HRC, stainless steel, cast iron, aluminium, copper…and etc. Accuracy tolerance: H7 (m5)
a
45°
Lc
L1
L
Through
Blind Hole
Steel Cast lron Stainless Steel AL, Copper
Hole
VHM Carbide
Uncoated Bright
L 7°
Z
Tolerance regulation
P H M K N
Dc size (mm)
Reamer Dc tolerance (mm)
Grind Dc tolerance (mm)
Above
Under
m5(JIS)
H7(DIN 1420)
Min
Mid
Max
-
3 6
+0.002/+0.006 +0.004/+0.008 +0.004/+0.009 +0.005/+0.010 +0.006/+0.012 +0.006/+0.012 +0.007/+0.015 +0.008/+0.015 +0.008/+0.017 +0.009/+0.017
+0.004 +0.005 +0.007 +0.009 +0.011
+0.005 +0.007 +0.009 +0.011 +0.013
+0.006 +0.009 +0.011 +0.013 +0.015
3 6
10 18 30
10 18
Long Length
Code No. R302-Dc
Dc H7
Lc mm
L1 mm
L mm 100 112 119 126 132 139 156 165 175 184 205 184 195 205 214 220 235 241 247
d mm
a mm 0.3 0.3 0.4 0.4 0.5 0.5 0.6 0.6 0.8 0.8 1.0 0.8 1.0 1.2 1.2 1.5
Z teeth
R302 Bright
3
● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
15 18 19 21 23 26 31 33 36 38 44
72 83 88 94 99
3
4 4 4 4 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
3.5
3.5
4
4
4.5
4.5
5 6 7 8 9
5 6 7 8 9
104 117 124 132 139 160 139 147 159 161 166 174 177 181
10 12
10 12 10 10 10
10-HM 38 11-HM 41 13-HM 44 14-HM 47 16-HM 50 17-HM 54 18-HM 56 19-HM 58
12.5 12.5
14 14 16
1.5 1.5 1.5
Please refer to page P494 for parameters. ※ HM series offer valid while stocks last
489
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