Reamers
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Special Reamers Geometries for Diverse Applications
Our Reamers Manufactured with tight tolerances,ensure precision in every cut, making them perfect for intricate and high-precision operations.
Special Reamers Geometries by GTW



Features of 9R0 Geometry
Straight or RH spiral or LH spiral fluted. |
Right hand cut. |
02 or 04 or 06 fluted. |
Enlarge and finish drilled holes to accurate dimensions. |
Improve the hole's surface finish and achieve a precise diameter. |
With and without internal coolants. |
Single margin |
L/D Ratio – Up to 5 |
Diameter Range – 2mm to 20mm |
With or Without Face cutting. |
PVD Coated – as per application |
Cylindrical Shank – DIN 6535 HA/HB/HE |
Application Material for 9R0 Geometry
1.1.1 | Machining Steel |
---|---|
1.1.2 | |
1.2.1 | Construction Steel |
1.2.2 | |
1.2.3 | |
1.3.1 | Spring Steel |
1.3.2 | |
2.1.1 | Case Hardening Steel |
2.1.2 | |
2.1.3 | |
2.2.1 | Nitriding Steel |
2.3.1 | Tempered Steel |
2.3.2 | |
2.3.3 | |
2.3.4 | |
2.3.5 | |
2.3.6 | |
3.1.1 | Unalloyed Tool Steel |
3.2.1 | Tool Steel For Cold Working |
3.2.2 | |
3.3.1 | Tool Steel For Hot Working |
3.3.2 | |
4.1.1 | Stainless Steel |
4.1.2 | |
4.1.3 | |
4.1.5 | |
5.1.1 | Conventional Cast Steel |
5.1.2 | |
5.1.3 | |
5.2.2 | Stainless Cast Steel |
6.1.1 | Lamellar Graphite Cast Iron |
6.1.2 | |
6.1.3 | |
6.2.1 | Spheroidal Cast Iron |
6.2.2 | |
6.2.3 | |
6.3.1 | White Malleable Cast Iron |
6.3.2 | |
6.4.1 | Black Malleable Cast Iron |
6.4.2 | |
7.1.1 | Aluminium |
7.1.2 | |
7.1.3 | |
7.1.4 | |
7.1.5 | |
7.1.6 | |
7.2.1 | Magnesium |
7.2.2 | |
7.3.1 | Copper |
7.3.2 | |
7.3.3 | |
7.4.1 | CnZn (Brass) |
7.4.2 | |
7.5.1 | CuSn (Bronze) |
7.5.2 | |
7.8.1 | Titanium |
7.8.2 | |
7.8.3 | |
8.1.1 | Thermoplast |
8.2.1 | Duroplast |




Features of 9R1 Geometry
LH spiral fluted |
Right hand cut |
02 or 04 or 06 flutes |
Suitable for thru bore application |
Enlarge and finish drilled holes to accurate dimensions. |
Evenly distribute the cutting forces |
Perform both radial and axial cutting |
Improve the hole's surface finish and achieve a precise diameter |
Faster material removal and cleaner hole |
With and without internal coolants |
Single margin |
L/D Ratio – Up to 5 |
Diameter Range – 2mm to 20mm |
With or Without Face cutting. |
PVD Coated – as per application |
Cylindrical Shank – DIN 6535 HA/HB/HE |
Application Material for 9R1 Geometry
1.1.1 | Machining Steel |
---|---|
1.1.2 | |
1.2.1 | Construction Steel |
1.2.2 | |
1.2.3 | |
1.3.1 | Spring Steel |
1.3.2 | |
2.1.1 | Case Hardening Steel |
2.1.2 | |
2.1.3 | |
2.2.1 | Nitriding Steel |
2.3.1 | Tempered Steel |
2.3.2 | |
2.3.3 | |
2.3.4 | |
2.3.5 | |
2.3.6 | |
3.1.1 | Unalloyed Tool Steel |
3.2.1 | Tool Steel For Cold Working |
3.2.2 | |
3.3.1 | Tool Steel For Hot Working |
3.3.2 | |
4.1.1 | Stainless Steel |
4.1.2 | |
4.1.3 | |
4.1.5 | |
5.1.1 | Conventional Cast Steel |
5.1.2 | |
5.1.3 | |
5.2.2 | Stainless Cast Steel |
6.1.1 | Lamellar Graphite Cast Iron |
6.1.2 | |
6.1.3 | |
6.2.1 | Spheroidal Cast Iron |
6.2.2 | |
6.2.3 | |
6.3.1 | White Malleable Cast Iron |
6.3.2 | |
6.4.1 | Black Malleable Cast Iron |
6.4.2 | |
7.1.1 | Aluminium |
7.1.2 | |
7.1.3 | |
7.1.4 | |
7.1.5 | |
7.1.6 | |
7.2.1 | Magnesium |
7.2.2 | |
7.3.1 | Copper |
7.3.2 | |
7.3.3 | |
7.4.1 | CnZn (Brass) |
7.4.2 | |
7.5.1 | CuSn (Bronze) |
7.5.2 | |
7.8.1 | Titanium |
7.8.2 | |
7.8.3 | |
8.1.1 | Thermoplast |
8.2.1 | Duroplast |




Features of 9R8 Geometry
RH spiral fluted |
Right hand cut |
02 or 04 or 06 flutes |
Suitable for blind bore application |
Enlarge and finish drilled holes to accurate dimensions |
Excellent at producing smooth, accurate hole surfaces |
Reduce friction and improve heat resistance |
With and without internal coolants |
Single margin |
L/D Ratio – Up to 6 |
Diameter Range – 2 mm to 20mm |
With Face cutting up to center |
PVD Coated – as per application |
Cylindrical Shank – DIN 6535 HA/HB/HE |
Application Material for 9R8 Geometry
1.1.1 | Machining Steel |
---|---|
1.1.2 | |
1.2.1 | Construction Steel |
1.2.2 | |
1.2.3 | |
1.3.1 | Spring Steel |
1.3.2 | |
2.1.1 | Case Hardening Steel |
2.1.2 | |
2.1.3 | |
2.2.1 | Nitriding Steel |
2.2.2 | |
2.3.1 | Tempered Steel |
2.3.2 | |
2.3.3 | |
2.3.4 | |
2.3.5 | |
2.3.6 | |
3.1.1 | Unalloyed Tool Steel |
3.2.1 | Tool Steel For Cold Working |
3.2.2 | |
3.3.1 | Tool Steel For Hot Working |
3.3.2 | |
4.1.1 | Stainless Steel |
4.1.2 | |
4.1.3 | |
4.1.5 | |
5.1.1 | Conventional Cast Steel |
5.1.2 | |
5.1.3 | |
5.2.2 | Stainless Cast Steel |
6.1.1 | Lamellar Graphite Cast Iron |
6.1.2 | |
6.1.3 | |
6.2.1 | Spheroidal Cast Iron |
6.2.2 | |
6.2.3 | |
6.3.1 | White Malleable Cast Iron |
6.3.2 | |
6.4.1 | Black Malleable Cast Iron |
6.4.2 | |
8.1.1 | Thermoplast |
8.2.1 | Duroplast |