CoroCut® 2
New concept, greater benefits
Handling instructions
View and download handling instructions for CoroCut® 2 parting off blades
Find the adaptor for your specific machine
These clamping units and driven tool holders are designed to fit specific turret interfaces, with unique bolt patterns for each machine brand.
Application tips
There are a number of tips that will radically improve your parting and grooving operations, if you follow them.
Wiper design for all parting geometries
Wiper inserts allow you to machine components at high feed rates without compromising on surface finish and chip breaking capability. A general guideline is: twice the feed rate, same surface finish. Same feed rate, double the surface finish quality.
Parting off blade design
The short clamping finger offers better performance when making chamfers before parting off. Both tool life and surface finish are improved due to better stability and internal coolant.
Key for blades
The key for the shorter parting blade clamping finger uses two pins, one of which is off-centered and opens the blade when turned.
Positioning
External grooving and parting off
CoroCut® 2
Versatile parting and grooving, cost-efficient thanks to double-edged inserts. First choice for grooving and parting off for diameters under 40 1.575 mm.
CoroCut® 3
For cost-efficient shallow parting and grooving and narrow precision and circlip grooving down to the smallest widths.
CoroCut® QD
First choice for parting off and deep grooving.
| System | CDX, mm | CW, mm |
| CoroCut® QD | 15–80 | 2–8 |
| CoroCut® 2 | 13–28 | 1.5–8 |
| CoroCut® 3 | 1.5–6.4 | 0.5–3.18 |
Internal grooving
CoroCut® 2
Versatile parting and grooving concept. First choice for internal grooving for larger diameters,
25 mm (0.984 inch) and above. Cost-efficient thanks to double-edged inserts.
CoroTurn® XS
Precision-ground tools. First choice for the narrowest grooves in the smallest diameters, 2–10 mm (0.079–0.394 inch).
CoroCut® MB
A cost-efficient option for narrow grooves in small diameters.
CoroCut® QI
First choice for secure internal grooving for small diameters, 12–60 mm (0.472–2.362). Ensures high process security and reliable grooving operations with high surface quality.
| System | DMIN, mm | CDX, mm |
| CoroCut® XS | 2–7.2 | 0.4–2.5 |
| CoroCut® MB | 10–20 | 0.7–8 |
| CoroCut® QI | 12–60 | 2–19 |
| CoroCut® 2 | 25–150 | 4.5–23 |
Face grooving
CoroCut® 2
Versatile parting and grooving product family. Cost-efficient thanks to double-edged inserts. First choice for shallow face grooving for diameters over 35 1.378 mm.
CoroCut® QF
First choice for secure deep face grooving with diameters of over 30 mm (1.181 inch). Provides unmatched reliability even for deep narrow grooves.
CoroCut® MB
A cost-efficient option for narrow grooves in small diameters.
CoroTurn® XS
Precision-ground tools. First choice for the narrowest grooves in the smallest diameters.
| System | DAXIN, mm | CDX, mm | CW, mm |
| CoroTurn® XS | 0.2–24 | 2–30 | 1-5 |
| CoroCut® MB | 5.64–12 | 1.5–10 | 1–4 |
| CoroCut® QI | 16–35 | 5.5–20 | 3–6 |
| CoroCut® QF | 30–500 | 20–50 | 3–8 |
| CoroCut® 2 | 34–200 | 12–28 | 2.5–8 |
Recommendations
- Start with the first choice recommended cutting data
- All cutting data recommendations are given without precision coolant
- Increase the speed by 30–50% when using precision coolant
- In parting off and external grooving operations, CoroCut® 2 is a cost-efficient solution for cutting depths where double-edged inserts can be used.
If CoroCut® 2 doesn’t suit your needs, see the Parting and grooving tools page for more tool recommendations.
Insert recommendations
Insert seat sizes
- The inserts are available in different insert seat sizes with different corner radii. All CoroCut® 2 inserts are fully compatible with existing CoroCut® 1-2 tool holders. However, to gain the benefit of a more precise insert position and minimized insert movement, a conversion to the new tool holders with the rail design is necessary for tip seats E-F-G.
- The insert seat sizes must correspond with the holder seat size
Insert seat sizes
- D with V-shape:
- Insert widths: 1.5 mm (0.059 inch)
- Cutting depth: 8–17 mm (0.315–0.669)
- E-L with stable rail design:
- Insert widths: 2–8 mm (0.079–0.315 inch)
- Cutting depth: 8–32 (0.315–1.30 inch)
First choice inserts
Use the charts below to find the best first choice insert for your operation
Undercutting with CoroCut® 2
CoroCut® double-edged inserts offer great chip control in undercutting operations with small clearance depths at low feeds.
- -RM is an all-round geometry for profiling in all materials
- Use the -RO geometry available in CoroCut® 1-2 for operations in stainless steel, HRSA and other sticky materials
Circlip grooving
For low cutting forces and good surface quality, use CoroCut® 2 with -GF geometry
Geometries and application
-CM  | -CR  | -GF  | -GM  | -GL  | -TF  | -TM  | -RF  | -RM  | ||||
| Parting off |  |  | |  | | | | |  | | | Main application |
| Grooving |  | | | | | | | | | | | Complementary application |
| Profiling |  | | | | | | | | | | | Not recommended |
| Turning |  | | | | | | | | | |
Parting off
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| 1. Parting tubes | 2. Parting bars, good conditions | 3. Parting bars, difficult conditions | 4. Light intermittence | 5. Severe intermittence | |
| ISO P | GC1125 -CF* | GC1225 -CM | GC1135 -CR | GC1135 -CM | GC1135 -CR |
| ISO M | GC1225 -CM | GC1225 -CM | GC1135 -CM | GC1145 -CM | GC1145 -CM |
| ISO K | GC4425 -CM | GC4425 -CM | GC1135 -CR | GC1135 -CR | GC1135 -CR |
| ISO N | H13A -TF | H13A -TF | H13A -TF | H13A -TF | H13A -TF |
| ISO S | GC1205 -CM | GC1205 -CM | GC1145 -CM | GC1145 -CM | GC1145 -CM |
| ISO H | CB7015 -S* | CB7015 -S* | CB7015 -S* | CB7015 -S* | CB7015 -S* |
All grades and geometries are updated except those marked with *, which are still available in CoroCut® 1-2.
- Parting bars or tubes – Good to normal conditions
- Parting bars – Good to normal conditions (sub chuck and/or feed reduction in center)
- Parting bars – Normal to rough conditions, no feed reduction in center
- Parting bars or tubes – Light to medium intermittent
- Parting bars or tubes – Medium to severe intermittent
Grooving
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| Grooving | Turning wide groove | Internal groove | Internal wide groove | Face groove | |
| ISO P | GC1225 -GF | GC4425 -TF | GC1225 -GF | GC4425 -TF | GC4425 -TF |
| ISO M | GC1135 -GF | GC1135 -TF | GC1135 -GF | GC1135 -TF | GC1135 -TF |
| ISO K | GC3115 -GM | GC3115 -TM | GC1225 -GF | GC3115 -TF | GC3115 -TF |
| ISO N | H13A -GF | H13A -TF | H13A -GF | H13A -TF | H13A -TF |
| ISO S | GC1205 -GF | GC1205 -TF | GC1205 -GF | GC1205 -TF | GC1205 -TF |
| ISO H | CB7015 -S* | CB7015 -S* | CB7015 -S* | CB7015 -S* | CB7015 -S* |
All grades and geometries are updated except those marked with *, which are still available in CoroCut® 1-2.
Profiling
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||
| External profiling | Internal profiling | |
| ISO P | GC4425 -RM | GC1225 -RF |
| ISO M | GC1225 -RM | GC1225 -RF |
| ISO K | GC4425 -RM | GC4425 -RM |
| ISO N | H10 -AM* | H10 -AM* |
| ISO S | S205 -RO* | GC1205 -RF |
| ISO H | CB7015 -RE* | CB7015 -RE* |
All grades and geometries are updated except those marked with *, which are still available in CoroCut® 1-2. -RO and -AM have a ground cutting edge and tighter tolerances than -RM. Use -RO/-AM when high repeatability is required.
Troubleshooting wear types
| Wear type | Cause | Solution |
Built-up-edge  | 1. Cutting edge temperature too low. 2. Unsuitable geometry or grade. | 1. Increase cutting speed and/or feed. 2. Choose a geometry with sharper edges, preferably a PVD-coated grade. |
Chipping/Breakage  | 1. Grade too hard. 2. Geometry too weak. 3. Unstable conditions. 4. Cutting data too high. | 1. Choose a softer grade. 2. Choose a geometry for higher feed area. 3. Reduce overhang. Check center height. 4. Reduce cutting data. |
Plastic deformation  | 1. Excessive temperature in cutting zone. 2. Unsuitable grade. 3. Lack of coolant supply. | 1. Reduce cutting speed and/or feed. 2. Choose more wear-resistant grade. 3. Improve coolant supply. |
Notch wear  | 1. Oxidation at the cutting depth. 2. Cutting edge temperature too high. | 1. Use varying cutting depths (ramping). 2. Reduce cutting speed. |
Flank wear  | 1. Cutting speed too high. 2. Grade too soft. 3. Lack of coolant supply. | 1. Decrease cutting speed. 2. Choose more wear-resistant grade. 3. Improve coolant supply. |
Crater wear  | 1. Cutting speed too high. 2. Grade too soft. 3. Feed too high. 4. Lack of coolant supply. | 1. Decrease cutting speed. 2. Choose more wear-resistant grade. 3. Decrease feed. 4. Improve coolant supply |
Code key
Inserts
1. Product Area
T = CoroTurn
C = CoroCut
M = CoroMill
D = CoroDrill
B = CoroBore
2. Product family
2 = CoroCut® 2
3. Product code (TPC)
R = Radial P&G indexable tool item
A = Axial P&G indexable tool item
T = Turning indexable tool item
I = Indexable insert item
4. Insert seat size code
D = 1.5 mm
E = 2.0 mm
F = 2.5 mm
G = 3.0 mm
H = 4.0 mm
J = 5.0 mm
K = 6.0 mm
L = 8.0 mm
5. Number of edges
1 = single-edged inserts
2 = double-edged inserts
6. Hand of inserts
R = Right
L = Left
N = Neutral
7. Cutting width
For example:
0300 = Cutting width 3.0 mm
8. Front angle
For example
00 = 0°
05 = 5°
9. Corner radius
For example
02 = 0.2 mm
04 = 0.4 mm
10. Geometry designation
First digit: Type of operation
C = Parting off (Cut)
G = Grooving
T = Turning
R = Profiling (Round)
Second digit:
F = Low feed
M = Medium feed
R = High feed
11. Grade code
For example
4425
Parting and grooving tools
1. Product area
T = CoroTurn
C = CoroCut
M = CoroMill
D = CoroDrill
B = CoroBore
2. Product family
2 = CoroCut® 2
3. Product code (TPC)
R = Radial P&G indexable tool item
A = Axial P&G indexable tool item
T = Turning indexable tool item
I = Indexable insert item
4. Machine coupling type
CC = Coromant Capto® cutting unit
QS = QS shank tool
RS = Rectangular shank tool
SL = SL cutting head
BN = Blade for parting with neutral coupling
BR = Blade for parting with right hand coupling
BL = Blade for parting with left hand coupling
CE = Cylindrical shank with groove for EasyFix sleeve
CF = Cylindrical shank with flat
5. Machine coupling size
3 = Capto C3, 30 mm flange
4 = Capto C4, 40 mm flange
5 = Capto C5, 50 mm flange
6 = Capto C6, 63 mm flange
8 = Capto C8, 80 mm flange
08 = 8 x 8 mm shank tool
10 = 10 x 10 shank tool
12 = 12 x 12 mm shank tool
16 = 16 x 16 mm shank tool
20 = 20 x 20 mm shank tool
25 = 25 x 25 mm shank tool
32 = 32 x 32 mm shank tool
40 = 40 x 40 mm shank tool
A06 = 6/16 inch (3/8 inch) shank tool
A08 = 8/16 inch (1/2 inch) shank tool
A10 = 10/16 inch (5/8 inch) shank tool
A12 = 12/16 inch (3/4 inch) shank tool
A16 = 16/16 inch (1 inch) shank tool
A20 = 20/16 inch (1 1/4 inch) shank tool
A24 = 24/16 inch (1 1/2 inch) shank tool
16 = 16 mm cylindrical shank tool
20 = 20 mm cylindrical shank tool
25 = 25 mm cylindrical shank tool
32 = 32 mm cylindrical shank tool
40 = 40 mm cylindrical shank tool
50 = 50 mm cylindrical shank tool
A10 = 10/16" (5/8") cylindrical shank tool
A12 = 12/16" (3/4") cylindrical shank tool
A16 = 16/16" (1") cylindrical shank tool
A20 = 20/16" (1 1/4") cylindrical shank tool
A24 = 24/16" (1 1/2") cylindrical shank tool
A32 = 32/16" (2") cylindrical shank tool
25 = 25 mm SL cutting head
32 = 32 mm SL cutting head
40 = 40 mm SL cutting head
70 = 70mm SL cutting head
21 = blade HF measurement 21.4 mm
25 = blade HF measurement 25 mm
45 = blade HF measurement 45 mm
6. Tool in hand
N = Neutral
R = Right-hand tool
L = Left-hand tool
7. Insert seat size code
D = 1.5 mm
E = 2.0 mm
F = 2.5 mm
G = 3.0 mm
H = 4.0 mm
J = 5.0 mm
K = 6.0 mm
L = 8.0 mm
8. Maximum cutting depth
For example:
20 = CDX 20 mm
9. Coolant type
A = Precision over coolant
B = Precision under coolant
C = Precision over and under coolant
D = No coolant
G = Internal coolant
10. Insert clamping
A = Spring clamp
B = Screw clamp
C = Shallow grooving
D = Screw clamp with curved reinforcement
E = Spring clamp with linear reinforcement
F = Screw clamp with linear reinforcement
S = Angled screw clamp for Swiss shanks
11. Number of insert seats (only valid for blades)
1 = one insert seat
2 = two insert seats
Face grooving tools
1. Product area
T = CoroTurn
C = CoroCut
M = CoroMill
D = CoroDrill
B = CoroBore
2. Product family
2 = CoroCut® 2
3. Product application (TPC)
R = Radial P&G indexable
A = Axial P&G indexable
T = Turning indexable
4. Machine coupling type
CC = Coromant Capto® cutting unit
QS = QS shank tool
RS = Rectangular shank tool
SL = SL cutting head
5. Machine coupling size
4 = Capto C4, 40 mm flange
5 = Capto C5, 50 mm flange
6 = Capto C6, 63 mm flange
20 = 20 x 20 mm shank tool
25 = 25 x 25 mm shank tool
32 = 32 x 32 mm shank tool
A12 = 12/16 inch (3/4 inch) shank tool
A16 = 16/16 inch (1 inch) shank tool
A20 = 20/16 inch (1 1/4) inch) shank tool
32 = 32 mm SL cutting head
40 = 40 mm SL cutting head
70 = 70mm SL cutting head
6. Tool in hand
R = Right-hand tool
L = Left-hand tool
7. Holder style
F = 0-degree approach angle
G = 90-degree approach angle
8. Insert seat size code
G = 3.0 mm
H = 4.0 mm
J = 5.0 mm
K = 6.0 mm
L = 8.0 mm
9. Maximum cutting depth (CDX)
For example:
18 = CDX 18 mm
10. Blade type
A = blade curve for internal face grooving
B = blade curve for face grooving to boss
11. Minimum diameter for first cut
For example:
220 = 220 mm
12. Coolant type
A = Precision over coolant
B = Precision under coolant
C = Precision over and under coolant
D = No coolant
13. Insert clamping
A = Spring clamp
B = Screw clamp
C = Shallow grooving
D = Screw clamp reinforced
Profiling tools
1. Product area
T = CoroTurn (General Turning)
C = CoroCut (Parting and grooving)
M = CoroMill
D = CoroDrill
B = CoroBore
2. Product Family
2 = CoroCut® 2
3. Product application (TPC)
R = Radial P&G Indexable (T711 & T714)
A = Axial P&G Indexable Tool item (T713)
T = Turning indexable (T712)
4. Machine coupling type
CC = Coromant Capto® cutting unit
QS = QS Shank tool
RS = Rectangular shank tool
SL = SL cutting head
BF = Boring bar with flat
BE = Boring bar with groove for EasyFix sleeve
5. Machine coupling size
3 = Capto C3, 30 mm flange
4 = Capto C4, 40 mm flange
5 = Capto C5, 50 mm flange
6 = Capto C6, 63 mm flange
8 = Capto C8, 80 mm flange
08 = 8 x 8 mm shank tool
10 = 10 x 10 shank tool
12 = 12 x 12 mm shank tool
16 = 16 x 16 mm shank tool
20 = 20 x 20 mm shank tool
25 = 25 x 25 mm shank tool
32 = 32 x 32 mm shank tool
40 = 40 x 40 mm shank tool
A06 = 6/16" (3/8") shank tool
A08 = 8/16" (1/2") shank tool
A10 = 10/16" (5/8") shank tool
A12 = 12/16" (3/4") shank tool
A16 = 16/16" (1") Shank tool
A20 = 20/16" (1 1/4") Shank tool
A24 = 24/16" (1 1/2") shank tool
25 = 25 mm SL cutting head
32 = 32 mm SL cutting head
40 = 40 mm SL cutting head
70 = 70mm SL cutting head
16 = 16 mm boring bar
20 = 20 mm boring bar
25 = 25 mm boring bar
32= 32 mm boring bar
40 = 40 mm boring bar
50 = 50 mm boring bar
A10 = 10/16" (5/8") boring bar
A12 = 12/16" (3/4") boring bar
A16 = 16/16" (1") boring bar
A20 = 20/16" (1 1/4") boring bar
A24 = 24/16" (1 1/2") boring bar
A32 = 32/16" (2") boring bar
6. Tool in hand
R = Right hand tool
L = Left hand tool
7. Maximum ramping angle (RMPX)
07 = 7 degrees
20 = 20 degrees
45 = 45 degrees
70 = 70 degrees
8. Insert seat size
D = 1.5 mm
E = 2.0 mm
F = 2.5 mm
G = 3.0 mm
H = 4.0 mm
J = 5.0 mm
K = 6.0 mm
L = 8.0 mm
9. Maximum cutting depth
For example:
25 = CDX 25 mm
10. Coolant type
A = Precision over coolant
B = Precision under coolant
C = Precision over and under coolant
D = No coolant
G = Internal coolant
11. Clamping system
A = Spring clamp
B = Screw clamp
C = Shallow grooving
D = Screw clamp reinforced
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Sandvik Coromant US - Mebane, NC
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