7Leaders

High Precision Machine Reamers 4&6 Flute Straight Shank Chucking Reamers

Uncoated Bright

MG Carbide

Z

Code No: R392-DC

Standard Length (Dc=d) Dc

Lc

L1

L

Z Bright R392

Dec.Equiv. Inch mm Inch mm Inch mm Inch mm teeth 0.1420 3.607 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

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0.1425 0.1430 0.1435

3.620 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.632 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.645 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

0.1440 #27 3.658 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

0.1445 0.1450 0.1455 0.1460 0.1465

3.670 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.683 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.696 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.708 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.721 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

Work Material P H M K N S

0.1470 #26 3.734 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

0.1475 0.1480 0.1485 0.1490

3.747 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.759 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.772 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.785 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

P Steel

0.1495 #25 3.797 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

H <48HRC

0.1500 0.1505 0.1510 0.1515

3.810 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.823 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.835 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.848 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

Hardened Steel

M Stainless Steel

0.1520 #24 3.861 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

0.1525 0.1530 0.1535

3.874 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.886 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.899 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

K Cast Iron

0.1540 #23 3.912 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

N Aluminium

0.1545 0.1550 0.1555 0.1560 0.1565

3.924 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.937 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.950 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.962 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 3.975 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

N Copper

N Plastics

0.1570 #22 3.988 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

0.1575 0.1580 0.1585

4.001 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 4.013 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 4.026 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

Tolerance: DC +0.0001/+0.0003: 1/32"~1/4" +0.0001/+0.0004: 1/4"~1/2" Feature of product:

0.1590 #21 4.039 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4

Provide superior wear resistance. Can withstand the highest cutting temperatures in low tensile and highly abrasive materials such as Bronze, Copper, Rubber, Aluminium, Cast Iron, and Steel… etc.

0.1595 0.1600 0.1605

4.051 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 4.064 3/4 19.05 1-1/4 31.75 2-1/2 63.50 4 4.077 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4

0.1610 #20 4.089 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4

0.1615 0.1620 0.1625 0.1630 0.1635 0.1640 0.1645 0.1650

4.102 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4 4.115 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4 4.128 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4 4.140 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4 4.153 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4 4.166 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4 4.178 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4 4.191 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4

0.1660 #19 4.216 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4

0.1665 0.1670 0.1675 0.1680 0.1685 0.1690

4.229 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4 4.242 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4 4.255 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4 4.267 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4 4.280 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4 4.293 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4

0.1695 #18 4.305 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4

0.1700 0.1705 0.1710

4.318 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4 4.331 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4 4.343 7/8 22.23 1-1/2 38.10 2-3/4 69.85 4

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