NC Machine Reamers 4&6 Flute Straight Shank Chucking Reamers
Uncoated Bright
MG Carbide
0°
Code No: R391-DC
Work Material P H M K N S
Lc
L
Standard Length Dc H7 Dec.Equiv. Inch
P Steel
L Inch
d Inch
Z teeth
Bright R391
Lc Inch
H <48HRC
1/32 0.0313 1/4 1-1/2 0.0260
4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
Hardened Steel
3/64 0.0469 1/16 0.0625 5/64 0.0781 3/32 0.0938 7/64 0.1094 1/8 0.1250 9/64 0.1406 5/32 0.1562 11/64 0.1719 3/16 0.1875 13/64 0.2031 7/32 0.2188 15/64 0.2344 1/4 0.2500 17/64 0.2656 9/32 0.2812 19/64 0.2969 5/16 0.3125 21/64 0.3281 11/32 0.3438 23/64 0.3594 3/8 0.3750 25/64 0.3906 13/32 0.4062 27/64 0.4219 7/16 0.4375 29/64 0.4531 15/32 0.4688 31/64 0.4844 1/2 0.5000 #60 0.0400 #59 0.0410 #58 0.0420 #57 0.0430 #56 0.0465 #55 0.0520 #54 0.0550 #53 0.0595 #52 0.0635 #51 0.0670 #50 0.0700 #49 0.0730 #48 0.0760 #47 0.0785 #46 0.0810 #45 0.0820 #44 0.0860 #43 0.0890 #42 0.0935
3/8 1-1/2 0.0410 3/8 1-1/2 0.0520 1/2 1-3/4 0.0625 5/8 2-1/4 0.0938 5/8 2-1/4 0.1094 3/4 2-1/2 0.1250 3/4 2-1/2 0.1406 1/2 2 0.0781 7/8 2-3/4 0.1562 7/8 2-3/4 0.1719
K Cast Iron
N Aluminium
N Copper
1 1 1 1
3 0.1875 3 0.1875 3 0.2188 3 0.2188
N Plastics
1-1/8 3-1/4 0.2500 1-1/8 3-1/4 0.2500 1-1/8 3-1/4 0.2812 1-1/8 3-1/4 0.2812 1-1/4 3-1/2 0.3125 1-1/4 3-1/2 0.3125 1-1/4 3-1/2 0.3125 1-1/4 3-1/2 0.3594 1-1/4 3-1/2 0.3750 1-1/4 3-1/2 0.3750 1-3/8 4 0.3750 1-3/8 4 0.3750 1-3/8 4 0.4375 1-3/8 4 0.4375 1-1/2 4 0.4375 1-1/2 4 0.4375 1/4 1-1/2 0.0360 1/4 1-1/2 0.0360 3/8 1-1/2 0.0380 3/8 1-1/2 0.0380 3/8 1-1/2 0.0410 3/8 1-1/2 0.0410 3/8 1-1/2 0.0520 3/8 1-1/2 0.0520 3/8 1-1/2 0.0520 1/2 1-3/4 0.0625 1/2 1-3/4 0.0625 1/2 1-3/4 0.0625 1/2 1-3/4 0.0625 1/2 1-3/4 0.0625 1/2 1-3/4 0.0625
Tolerance: DC +0.0001/+0.0002: ≤1/4"(.2500) +0.0001/+0.0003: >1/4"(.2500) Feature of product: 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.
1/2 1/2 1/2 1/2
2 0.0781 2 0.0781 2 0.0781 2 0.0781
369
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