DRILLSTAR CARBIDE TOOLS ARE WORKING IN MANY PLACES AROUND THE WORLD
AG Carbide(DrillStar) manufacture a wide range of BTA single tube and ejector twin tube deep hole drills from Ø7.76mm through to Ø500mm, and larger as special application tools.
BTA drills are used on dedicated machinery where the coolant is induced through a pressure head and the chips are then evacuated through the centre of the drill and the drill tube. Tube dampers are used to support the drill tube and prevent vibration and distortion of the tube, and work steadies support the work piece if required.
Ejector drills are used on conventional and CNC type machines. They use an inducer to feed coolant between the inner and outer twin tube system with the chips being ejected through the centre of the inner tube. With CNC machines now utilising high pressure coolant Botek are able to offer alternatives to the ejector system.
BTA drilling is a deep hole drilling process that uses a specialized drilling tool on a long drill tube to produce deep holes in metal, from holes with a diameter of 20 mm [0.80 in] and larger, up to depth-to-diameter ratios of 400:1. BTA drilling is the most effective method of drilling deep holes, as it is a cleaner, more reliable and capable process than conventional twist drills, and can achieve larger diameters and higher feed rates than the alternative gundrilling.
BTA drilling tool heads are threaded or mounted onto long drill tubes, and use multiple cutting surfaces on a single tool to remove chips efficiently, exhausting them using high-pressure coolant through holes in the tool head, then out the drill tube and through the machining spindle. BTA tooling is available in brazed or inserted carbide configurations.
BTA stands for Boring and Trepanning Association, and is also sometimes referred to as STS (single tube system) drilling, as it uses one single drill tube for the BTA tool, compared to other processes such as ejector drilling, which use two.
BTA drilling is a deep hole drilling method which was created by the Boring and Trepanning Association in the 1940’s. It comprises of a special hollow tooling that allows pressurized coolant to flow into the hole on the outside of the drill, and evacuates chips through an internal hole in the drill.
Depending on the depth and diameter of the hole needing to be drilled, the BTA tooling will consist of a hollow drill tube that it attached to a threaded indexable cutter head. BTA drilling has an effective diameter range of 20-200mm (0.80″-8.00″) and can reach depths of up to 400mm (16.00″).
Botek manufacture a wide range of BTA single tube and ejector twin tube deep hole drills from Ø7.76mm through to Ø500mm, and larger as special application tools.
BTA drills are used on dedicated machinery where the coolant is induced through a pressure head and the chips are then evacuated through the centre of the drill and the drill tube. Tube dampers are used to support the drill tube and prevent vibration and distortion of the tube, and work steadies support the work piece if required.
Ejector drills are used on conventional and CNC type machines. They use an inducer to feed coolant between the inner and outer twin tube system with the chips being ejected through the centre of the inner tube. With CNC machines now utilising high pressure coolant Botek are able to offer alternatives to the ejector system.
Solid drill heads with brazed carbide inserts are available from Ø7.76mm to Ø65mm. These heads can be reground and re-tipped / re-coated but are considered a consumable item and therefore have a limited life.
Indexable inserted drill heads are available from Ø15mm upward and allow quick insert changes and on heads above Ø25mm the ability to adjust the cutting diameter.
Counterboring heads with indexable inserts are available from Ø28.5mm upward and allow holes to be bored out to larger sizes after solid drilling. As they use less power than solid drill heads, larger diameters can be produced on machines with limited power.
Trepanning heads are available from Ø55mm and produce an inner core that can be reused saving material costs.
Diameter（mm) | Core inserts | Middle inserts | Outside inserts | Guide pad | qty |
25.05 | 800-050308M-C-G | 800-050308M-I-G | 800-060308H-P-G | 800-06A | 2 |
28 | 800-050308M-C-G | 800-050308M-I-G | 800-060308H-P-G | 800-06A | 2 |
29.7 | 800-06T308M-C-G | 800-050308M-I-G | 800-060308H-P-G | 800-06A | 2 |
31.5 | 800-06T308M-C-G | 800-06T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
31.7 | 800-06T308M-C-G | 800-06T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
32.06 | 800-06T308M-C-G | 800-06T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
34.5 | 800-08T308M-C-G | 800-06T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
34.7 | 800-08T308M-C-G | 800-06T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
35 | 800-08T308M-C-G | 800-08T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
35.7 | 800-08T308M-C-G | 800-08T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
38.49 | 800-08T308M-C-G | 800-08T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
38.5 | 800-08T308M-C-G | 800-08T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
38.59 | 800-08T308M-C-G | 800-08T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
39.5 | 800-08T308M-C-G | 800-08T308M-I-G | 800-09T308H-P-G | 800-07A | 2 |
39.7 | 800-08T308M-C-G | 800-08T308M-I-G | 800-09T308H-P-G | 800-08A | 2 |
41.4 | 800-08T308M-C-G | 800-08T308M-I-G | 800-09T308H-P-G | 800-08A | 2 |
44.5 | 800-10T308M-C-G | 800-08T308M-I-G | 800-09T308H-P-G | 800-08A | 2 |
44.7 | 800-10T308M-C-G | 800-08T308M-I-G | 800-09T308H-P-G | 800-08A | 2 |
49.5 | 800-12T308M-C-G | 800-08T308M-I-G | 800-09T308H-P-G | 800-10A | 2 |
49.7 | 800-12T308M-C-G | 800-08T308M-I-G | 800-09T308H-P-G | 800-10A | 2 |
51.3 | 800-10T308M-C-G | 800-08T308M-I-G | 800-11T308H-P-G | 800-10A | 2 |
51.71 | 800-10T308M-C-G | 800-08T308M-I-G | 800-11T308H-P-G | 800-10A | 2 |
54.5 | 800-10T308M-C-G | 800-08T308M-I-G | 800-11T308H-P-G | 800-10A | 2 |
54.7 | 800-10T308M-C-G | 800-08T308M-I-G | 800-11T308H-P-G | 800-10A | 2 |
55 | 800-10T308M-C-G | 800-12T308M-I-G | 800-11T308H-P-G | 800-12A | 2 |
59.5 | 800-12T308M-C-G | 800-12T308M-I-G | 800-11T308H-P-G | 800-12A | 2 |
59.7 | 800-12T308M-C-G | 800-12T308M-I-G | 800-11T308H-P-G | 800-12A | 2 |
64.5 | 800-12T308M-C-G | 800-12T308M-I-G | 800-11T308H-P-G | 800-12A | 2 |
65 | 800-12T308M-C-G | 800-12T308M-I-G | 800-11T308H-P-G | 800-12A | 2 |
69.5 | TPMT16T312R | TPMT16T312R | R424.9-13T308 | 800-14D | 3 |
71.42 | TPMT16T312R | TPMT16T312R | R424.9-13T308 | 800-14D | 3 |
79.5 | TPMT16T312R | TPMT16T312R | R424.9-180608 | 800-16D | 3 |
84.5 | TPMT220612R | TPMT220612R | R424.9-180608 | 800-16D | 3 |
90 | TPMT220612R | TPMT220612R | R424.9-180608 | 800-18D | 3 |
99.5 | TPMT220612R | TPMT220612R | R424.9-180608 | 800-18D | 3 |
114 | TPMT16T312R | TPMT16T312R | R424.9-180608 | 800-22D | 3 |
115.5 | TPMT16T312R | TPMT16T312R | R424.9-180608 | 800-22D | 3 |
121.5 | TPMT16T312R | TPMT16T312R | R424.9-180608 | 800-24D | 3 |
129.5 | TPMT16T312R | TPMT16T312R | R424.9-180608 | 800-24D | 3 |
135.5 | TPMT220612R | TPMT220612R | R424.9-180608 | 800-26D | 3 |
For more information, please contact our sales.
AG Carbide(DrillStar) manufacture a wide range of BTA single tube and ejector twin tube deep hole drills from Ø7.76mm through to Ø500mm, and larger as special application tools.
BTA drills are used on dedicated machinery where the coolant is induced through a pressure head and the chips are then evacuated through the centre of the drill and the drill tube. Tube dampers are used to support the drill tube and prevent vibration and distortion of the tube, and work steadies support the work piece if required.
Ejector drills are used on conventional and CNC type machines. They use an inducer to feed coolant between the inner and outer twin tube system with the chips being ejected through the centre of the inner tube. With CNC machines now utilising high pressure coolant Botek are able to offer alternatives to the ejector system.
BTA drilling is a deep hole drilling process that uses a specialized drilling tool on a long drill tube to produce deep holes in metal, from holes with a diameter of 20 mm [0.80 in] and larger, up to depth-to-diameter ratios of 400:1. BTA drilling is the most effective method of drilling deep holes, as it is a cleaner, more reliable and capable process than conventional twist drills, and can achieve larger diameters and higher feed rates than the alternative gundrilling.
BTA drilling tool heads are threaded or mounted onto long drill tubes, and use multiple cutting surfaces on a single tool to remove chips efficiently, exhausting them using high-pressure coolant through holes in the tool head, then out the drill tube and through the machining spindle. BTA tooling is available in brazed or inserted carbide configurations.
BTA stands for Boring and Trepanning Association, and is also sometimes referred to as STS (single tube system) drilling, as it uses one single drill tube for the BTA tool, compared to other processes such as ejector drilling, which use two.
BTA drilling is a deep hole drilling method which was created by the Boring and Trepanning Association in the 1940’s. It comprises of a special hollow tooling that allows pressurized coolant to flow into the hole on the outside of the drill, and evacuates chips through an internal hole in the drill.
Depending on the depth and diameter of the hole needing to be drilled, the BTA tooling will consist of a hollow drill tube that it attached to a threaded indexable cutter head. BTA drilling has an effective diameter range of 20-200mm (0.80″-8.00″) and can reach depths of up to 400mm (16.00″).
Botek manufacture a wide range of BTA single tube and ejector twin tube deep hole drills from Ø7.76mm through to Ø500mm, and larger as special application tools.
BTA drills are used on dedicated machinery where the coolant is induced through a pressure head and the chips are then evacuated through the centre of the drill and the drill tube. Tube dampers are used to support the drill tube and prevent vibration and distortion of the tube, and work steadies support the work piece if required.
Ejector drills are used on conventional and CNC type machines. They use an inducer to feed coolant between the inner and outer twin tube system with the chips being ejected through the centre of the inner tube. With CNC machines now utilising high pressure coolant Botek are able to offer alternatives to the ejector system.
Solid drill heads with brazed carbide inserts are available from Ø7.76mm to Ø65mm. These heads can be reground and re-tipped / re-coated but are considered a consumable item and therefore have a limited life.
Indexable inserted drill heads are available from Ø15mm upward and allow quick insert changes and on heads above Ø25mm the ability to adjust the cutting diameter.
Counterboring heads with indexable inserts are available from Ø28.5mm upward and allow holes to be bored out to larger sizes after solid drilling. As they use less power than solid drill heads, larger diameters can be produced on machines with limited power.
Trepanning heads are available from Ø55mm and produce an inner core that can be reused saving material costs.
Diameter（mm) | Core inserts | Middle inserts | Outside inserts | Guide pad | qty |
25.05 | 800-050308M-C-G | 800-050308M-I-G | 800-060308H-P-G | 800-06A | 2 |
28 | 800-050308M-C-G | 800-050308M-I-G | 800-060308H-P-G | 800-06A | 2 |
29.7 | 800-06T308M-C-G | 800-050308M-I-G | 800-060308H-P-G | 800-06A | 2 |
31.5 | 800-06T308M-C-G | 800-06T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
31.7 | 800-06T308M-C-G | 800-06T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
32.06 | 800-06T308M-C-G | 800-06T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
34.5 | 800-08T308M-C-G | 800-06T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
34.7 | 800-08T308M-C-G | 800-06T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
35 | 800-08T308M-C-G | 800-08T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
35.7 | 800-08T308M-C-G | 800-08T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
38.49 | 800-08T308M-C-G | 800-08T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
38.5 | 800-08T308M-C-G | 800-08T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
38.59 | 800-08T308M-C-G | 800-08T308M-I-G | 800-08T308H-P-G | 800-07A | 2 |
39.5 | 800-08T308M-C-G | 800-08T308M-I-G | 800-09T308H-P-G | 800-07A | 2 |
39.7 | 800-08T308M-C-G | 800-08T308M-I-G | 800-09T308H-P-G | 800-08A | 2 |
41.4 | 800-08T308M-C-G | 800-08T308M-I-G | 800-09T308H-P-G | 800-08A | 2 |
44.5 | 800-10T308M-C-G | 800-08T308M-I-G | 800-09T308H-P-G | 800-08A | 2 |
44.7 | 800-10T308M-C-G | 800-08T308M-I-G | 800-09T308H-P-G | 800-08A | 2 |
49.5 | 800-12T308M-C-G | 800-08T308M-I-G | 800-09T308H-P-G | 800-10A | 2 |
49.7 | 800-12T308M-C-G | 800-08T308M-I-G | 800-09T308H-P-G | 800-10A | 2 |
51.3 | 800-10T308M-C-G | 800-08T308M-I-G | 800-11T308H-P-G | 800-10A | 2 |
51.71 | 800-10T308M-C-G | 800-08T308M-I-G | 800-11T308H-P-G | 800-10A | 2 |
54.5 | 800-10T308M-C-G | 800-08T308M-I-G | 800-11T308H-P-G | 800-10A | 2 |
54.7 | 800-10T308M-C-G | 800-08T308M-I-G | 800-11T308H-P-G | 800-10A | 2 |
55 | 800-10T308M-C-G | 800-12T308M-I-G | 800-11T308H-P-G | 800-12A | 2 |
59.5 | 800-12T308M-C-G | 800-12T308M-I-G | 800-11T308H-P-G | 800-12A | 2 |
59.7 | 800-12T308M-C-G | 800-12T308M-I-G | 800-11T308H-P-G | 800-12A | 2 |
64.5 | 800-12T308M-C-G | 800-12T308M-I-G | 800-11T308H-P-G | 800-12A | 2 |
65 | 800-12T308M-C-G | 800-12T308M-I-G | 800-11T308H-P-G | 800-12A | 2 |
69.5 | TPMT16T312R | TPMT16T312R | R424.9-13T308 | 800-14D | 3 |
71.42 | TPMT16T312R | TPMT16T312R | R424.9-13T308 | 800-14D | 3 |
79.5 | TPMT16T312R | TPMT16T312R | R424.9-180608 | 800-16D | 3 |
84.5 | TPMT220612R | TPMT220612R | R424.9-180608 | 800-16D | 3 |
90 | TPMT220612R | TPMT220612R | R424.9-180608 | 800-18D | 3 |
99.5 | TPMT220612R | TPMT220612R | R424.9-180608 | 800-18D | 3 |
114 | TPMT16T312R | TPMT16T312R | R424.9-180608 | 800-22D | 3 |
115.5 | TPMT16T312R | TPMT16T312R | R424.9-180608 | 800-22D | 3 |
121.5 | TPMT16T312R | TPMT16T312R | R424.9-180608 | 800-24D | 3 |
129.5 | TPMT16T312R | TPMT16T312R | R424.9-180608 | 800-24D | 3 |
135.5 | TPMT220612R | TPMT220612R | R424.9-180608 | 800-26D | 3 |
For more information, please contact our sales.
