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High Precision NC Machine Reamers (End Cutting) R329

Designed with right helix and right cutting flutes. Upward chip evacuation. Application for reaming different steels below 48HRC, stainless steel, cast iron, aluminium, copper…and etc. Designed with the function of end cutting. With internal coolant for even out the residual left in the bottom of the hole. Accuracy tolerance: H7 (m5) 0/+0.004mm

a

45°

Lc

L1

L

Through

Blind Hole 

Steel Cast lron Stainless Steel AL, Copper

Hole 

VHM Carbide

Uncoated Bright

R 30°

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

Standard Length

Code No. R329-Dc

Tolerance mm 0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004

Lc mm

L1 mm

L mm

d h5

a mm 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

Z teeth

R329 Bright

Dc +0.004 - 0

2.95 2.96 2.97 2.98 2.99

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15 15 15 15 15 15 15 15 15 15 15 19 19 19 19 19 19 19 19 19 19 19 23 23 23 23 23 23 23 23 23 23 23 26 26 26

33 33 33 33 33 33 33 33 33 33 33 43 43 43 43 43 43 43 43 43 43 43 52 52 52 52 52 52 52 52 52 52 52 52 52 52

61 61 61 61 61 61 61 61 61 61 61 75 75 75 75 75 75 75 75 75 75 75 86 86 86 86 86 86 86 86 86 86 86 93 93 93

3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 6 6 6

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4

3

H7

3.01 3.02 3.03 3.04 3.05 3.95 3.96 3.97 3.98 3.99

0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004

0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15

4

H7

4.01 4.02 4.03 4.04 4.05 4.95 4.96 4.97 4.98 4.99

0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004

0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

5

H7

5.01 5.02 5.03 5.04 5.05 5.95 5.96 5.97

0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004 0/+0.004

487

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