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Cutting Tools
High Speed Steel, Cobalt, Cutting Tools,
Milling Cutter, with Arbor Hole
Milling Cutter Corner Rounding Milling Cutters, Radius Cutters ID 1004-
Milling Cutter Corner Rounding Milling Cutters, Radius Cutters ID 1004-
Part Number:
1004-
Milling Cutter Corner Rounding Milling Cutters, Radius Cutters ID 1004-
Your Price:
$99.53
USD
Availabilty In Stock
Milling Cutter Corner Rounding Milling Cutters, Radius Cutters
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12401-C303R
12402-C303L
12403-C304R
12404-C304L
12405-C306R
12406-C306L
12407-C307R
12408-C307L
12409-C308R
12410-C308L
12411-C310R
12412-C310L
12413-C311R
12414-C311L
12415-C312R
12416-C312L
12417-C313R
12418-C313L
12419-C317R
12420-C317L
12421-C318R
12422-C318L
12423-C320R
12424-C320L
12425-C327R
12426-C327L
12427-C328R
12428-C328L
12429-C332R
12430-C332L
12431-C336R
12432-C336L
12433-C340R
12434-C340L
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Description
Milling Cutter Corner Rounding Milling Cutters, Radius Cutters ID 1004-
Corner rounding milling cutters (radius cutters) are designed for radius million on arbor type milling machines.
They may be used individually or in pairs. These cutters have side and radial clearance and
can be sharpened by grinding the face without changing their forms. When ordering,
specify whether right hand or left hand cutters are wanted.
Catalog
EDI-Number
Radius
Dia.
Width
Hole
Size
12401-C303R
12402-C303L
12403-C304R
12404-C304L
12405-C306R
12406-C306L
1/8
1/8
1/8
1/8
3/16
3/16
2
2
2 1/2
2 1/2
2 1/2
2 1/2
1/4
1/4
1/4
1/4
5/16
5/16
7/8
7/8
1
1
1
1
12407-C307R
12408-C307L
12409-C308R
12410-C308L
12411-C310R
12412-C310L
1/4
1/4
1/4
1/4
5/16
5/16
2 1/4
2 1/4
3
3
3
3
13/32
13/32
13/32
13/32
7/16
7/16
7/8
7/8
1
1
1
1
12413-C311R
12414-C311L
12415-C312R
12416-C312L
12417-C313R
12418-C313L
3/8
3/8
3/8
3/8
7/16
7/16
3
3
3 3/4
3 3/4
3 1/4
3 1/4
9/16
9/16
9/16
9/16
5/8
5/8
1
1
1 1/4
1 1/4
1
1
12419-C317R
12420-C317L
12421-C318R
12422-C318L
12423-C320R
12424-C320L
1/2
1/2
1/2
1/2
9/16
9/16
3 1/4
3 1/4
4 1/4
4 1/4
4 1/4
4 1/4
3/4
3/4
3/4
3/4
13/16
13/16
1
1
1 1/4
1 1/4
1 1/4
1 1/4
12425-C327R
12426-C327L
12427-C328R
12428-C328L
12429-C332R
12430-C332L
5/8
5/8
5/8
5/8
3/4
3/4
3 1/2
3 1/2
4 1/4
4 1/4
4 1/4
4 1/4
15/16
15/16
15/16
15/16
1 1/8
1 1/8
1
1
1 1/4
1 1/4
1 1/4
1 1/4
12431-C336R
12432-C336L
12433-C340R
12434-C340L
7/8
7/8
1
1
4 1/2
4 1/2
4 1/2
4 1/2
1 5/16
1 5/16
1 9/16
1 9/16
1 1/4
1 1/4
1 1/4
1 1/4
SPEEDS & FEEDS
FEEDS & SPEEDS FOR MILLING CUTTERS
The proper selection of feeds and speeds is the most important factor in the economical application of any cutting tool.
Speed is generally known as the rate of peripheral speed in terms of surface feet per minute (SFM). SFM is usually converted to revolutions per minute as shown in formula
Table 1
Feed is generally shown as feed in inches per revolution or as feed per tooth in inches (FPT).
The initial choice of feeds or speeds will be at the lower of high values of the ranges listed depending upon the following variables.
FEED
Use lower feed range for:
Saws, End Mills, and Form Cutters
Fine tooth cutters
Frail and small cutters
Light and finishing cuts
Deep slots
Hard to machine materials
Frail set-ups
Use higher feed range for:
Face and Slab milling
Coarse tooth cutters
Rugged cutters
Heavy roughing cuts
Abrasive materials
East to machine materials
Rigid set-ups
SPEED
Use lower feed range for:
Heavy cuts
Hard materials
Tough materials
Abrasive materials
Maximum cutter life
Minimum tool wear
Use higher feed range for:
Light cuts
Softer materials
Non-metallics
Frail work piece or set-up
Maximum production rates
Better finishes
Hand feed operations
Higher rakes (HSS cutters)
FEED, SPEED, AND HORSEPOWER CALCULATIONS
Modern milling cutters capable of operation at higher feeds and speeds, and removing more cubic inches of metal per minute, require greater machine rigidity and more power. Therefore it is important to ascertain that sufficient power is available to handle the desired depth and width of cut at the higher feeds and speeds.
The following formulas are suggested for the calculation on feeds and speeds plus horsepower requirements.
T = Number of teeth in cutter
D = Cutter Diameter in inches
RPM = Revolutions pet minute
SFM = Surface feet per minute
F = Feed in inches per minute
f = Feed per tooth in inches
W = Width of cut
d = Depth of cut
HP = Motor Horsepower
C = Machinability constant*
*Machinability constant values for various materials are based on removing one cubic inch of metal per minute per horsepower with 60% power efficiency at the spindle nose and a 25% allowance for cutter dulling.
Aluming, Magnesium, Dural
Brass
Soft Bronze, Copper
Cast Iron
Steel up to 150 Brinell, Malleable Iron
Steel, 300 Brinell, Hard Bronze
Steel, 400 Brinell
4.0 plus
2.5
2.0
1.5
.75
.6
.5
TABLE 1
.
SPEED
FEED
TYPE OF MATERIAL
HSS
CARBIDE
HSS
CARBIDE
Aluminum, Magnesium
Brass & Bronze - Soft
Brass & Bronze - Hard
Copper
Cast Iron - Soft
Cast Iron - Hard
600 & Up
250 - 300
150 - 200
150 - 200
75 - 100
50 - 75
1000 & Up
1000 & Up
400
1000 & Up
250 - 350
200 - 250
.005-.025
.005-.020
.003-.010
.005-.015
.005-.015
.003-.008
.005-.030
.010-.020
.005-.010
.005-.015
.010-.022
.005-.010
Steel
100 Brinell
200 Brinell
300 Brinell
125 - 175
70 - 90
40 - 50
450 - 600
350 - 450
200 - 250
.004-.010
.004-.010
.003-.005
.005-.020
.005-.010
.005-.010
Stainless Steel
Hard
Others
35 - 70
70 - 105
250 - 400
250 - 400
.003-.005
.003-.005
.003-.012
.003-.012
Titanium
Under 100,000 PSI
100,000 to 135,000 PSI
1,350 PSI & Over
35 - 55
25 - 35
15 - 25
150 - 180
120 - 150
80 - 120
.003-.005
.002-.005
.001-.005
.004-.008
.003-.008
.002-.008
High Temperature Alloys
Ferritic Low Alloys
Austenitic Alloys
Nickel Base Alloys
Cobalt Base Alloys
40 - 60
20 - 30
5 - 20
5 - 10
150 - 300
100 - 235
50 - 150
50 - 100
.002-.005
.001-.004
.001-.003
.001-.003
.003-.008
.002-.006
.002-.006
.002-.006
High Temperature Alloys
180,000 - 220,000 PSI
220,000 - 260,000 PSI
260,000 - 300,000 PSI
25 - 40
10 - 25
6 - 10
120 - 150
80 - 120
50 - 100
.002-.005
.001-.005
.001-.003
.003-.008
.002-.008
.002-.006
The selction of initial feed within each range will vary with the type of operation. The following is an example of the starting feed for HSS Cutters in mild steel.
Type of Cut
Starting Feed
per Tooth
Face Milling
Straddle Milling
Channel or Slot Milling
Slab Milling
Sawing
.008
.008
.008
.007
.002
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