,

Fukuda Seiko CR Center Reamer

Made in Japan
Manufacturer: Fukuda Seiko
Model: CR

A reamer used for finishing the center hole or chamfering. Reduced chatter with odd number of blades.

Large diameter tolerance: +0.2 to +0.6

Angle Tolerance: ±15′

■ Center reamer (Angle 60°)

Designation
(φD×θ)		 Large diameter
(φD)		 Small diameter
(φD1)		 Outer diameter length
( 1)		 Cutting edge
( )		 Overall length
(L)		 Shank diameter
(φd)		 Number of teeth
(N)		 shape
6×60ﾟ 6 Tongari
Center		 13 5.2 43 6 5 Figure 1
8×60ﾟ 8 18 6.93 48
10×60ﾟ 10 8.66 7
12×60ﾟ 12 25 10.39 55 8
16×60ﾟ 16 13.86 10
20×60ﾟ 20 17.32
25×60ﾟ 22 35 31.65 70 12 9
30×60ﾟ 30 38 25.98 73
35×60ﾟ 35 43 30.31 80
40×60ﾟ 40 45 34.64 85
45×60ﾟ 45 48 38.97 88
50×60ﾟ 50 57 43.3 100
60×60ﾟ 60 10 61 111 16 11 Figure 2

■ Center reamer (angle 90°)

Designation
(φD×θ)		 Large diameter
(φD)		 Small diameter
(φD1)		 Outer diameter length
( 1)		 Cutting edge
( )		 Overall length
(L)		 Shank diameter
(φd)		 Number of teeth
(N)		 shape
6×90ﾟ 6 Tongari
Center		 11 3 41 6 5 Figure 1
8×90ﾟ 8 15 Four 45
10×90ﾟ 10 Five 7
12×90ﾟ 12 20 6 50 8
16×90ﾟ 16 8 10
20×90ﾟ 20 10
25×90ﾟ 25 25 12.5 60 12 9
30×90ﾟ 30 30 15 65
35×90ﾟ 35 17.5 67
40×90ﾟ 40 20 70
45×90ﾟ 45 33 22.5 73
50×90ﾟ 50 37 25 80
60×90ﾟ 60 10 45 100 16 11 Figure 2

■ Center reamer (angle 120°)

Designation
(φD×θ)		 Large diameter
(φD)		 Small diameter
(φD1)		 Outer diameter length
( 1)		 Cutting edge
( )		 Overall length
(L)		 Shank diameter
(φd)		 Number of teeth
(N)		 shape
6×120ﾟ 6 Tongari
Center		 10 1.73 41 6 5 Figure 1
8×120ﾟ 8 13 2.31 45
10×120ﾟ 10 2.89 7
12×120ﾟ 12 15 3.46 50 8
16×120ﾟ 16 4.62 10
20×120ﾟ 20 20 5.77
25×120ﾟ 25 7.22 60 12 9
30×120ﾟ 30 25 8.66 65
35×120ﾟ 35 10.10 67
40×120ﾟ 40 11.55 70
45×120ﾟ 45 30 12.99 73
50×120ﾟ 50 14.43 80

 

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