BTA drill head with indexable insert high efficiency deep hole drill tool /gun drill guide
Product Description
The BTA (Boring & Trepanning Association) System was developed largely by an international group of tool manufacturers. This system was one of the first successful systems of internal chip removal tools, and includes a drilling, a boring, and a trepanning head and is considered the best system in hole making work that utilizes high pressure coolant tools.
In the BTA system hole making process, fluid under pressure flows to the setting edge over the O.D. of the boring bar and head, and exhausts with the chips through the I.D. of the boring bar. Clean filtered fluid flows constantly over the outside of the head, thus lubricating the guide pads which act as a burnishing tool to produce a smoother finish, and capable of high rate of feed. Hole depth is obtainable as much as 150 diameters or deeper.
Features
Premium Quality & Fast Support
High quality and competitive price with on-time delivery.
Imported Indexable Blade
Adopts imported coating blade for high efficiency, easy replacement, long service life, and low operational cost.
Wide Application
Suitable for drilling carbon steel, high strength alloy steel, stainless steel, and more.
High Precision
Hole diameter precision: IT9-11. Surface roughness: Ra 6.3 - 12.5.
Specification
Bit Specification (mm)
Drill Tube Size
Bit Specification (mm)
Drill Tube Size
17.8 - 19.5
16
43 / 45 / 47
40
19.51 - 21.99
17.5
48 / 50 / 52
43
22 - 24.99
20
55
48
25 - 26.99
23
57 / 58 / 60
52
27 - 29.99
25
62 / 63 / 65
56
30 - 31.99
27
68 / 70 / 72
61
34.5 - 35
30
75
65
38 - 42
35
80
70
Product Details
Packaging & Shipping
Frequently Asked Questions (FAQ)
What is the BTA drilling system?
The BTA (Boring and Trepanning Association) system is a high-performance deep hole drilling method that features an internal chip removal mechanism. Pressurized coolant is supplied to the drill head from the outside, flushing chips out through the inside of the boring bar.
What are the advantages of indexable BTA drill heads?
Our BTA drill heads feature imported indexable coating blades. This design offers high drilling efficiency, quick and easy blade replacement, extended overall service life, and lower operation costs compared to brazed tools.
Which materials can be drilled with BTA drill heads?
BTA drill heads are highly versatile and ideal for drilling difficult-to-machine materials, including carbon steel, high-strength alloy steel, stainless steel, and other structural metals.
What hole precision and surface roughness can be achieved?
This BTA system offers excellent machining accuracy, achieving a hole diameter tolerance of IT9-11 and a surface roughness profile ranging from Ra 6.3 to 12.5.
How deep can these BTA tools drill?
BTA deep hole tools are capable of drilling extremely deep structures, processing hole depths up to 150 times the diameter or even deeper, while maintaining straightness.
How does the coolant system improve surface finish?
Clean, filtered, high-pressure fluid constantly flows over the outer guide pads of the drill head. This acts as a burnishing process, providing lubrication that creates a smoother finish and supports high feed rates.
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