Tenn DX Selfdrillers are high strength carbon steel self-drilling screws. They combine drilling, tapping and fastening in a single operation. Tenn DX Selidrillers are designed for use under the extreme conditions of construction site environments.
Tenn DX Selfdrillers are high strength carbon steel self-drilling screws. They combine drilling, tapping and fastening in a single operation. Tenn DX Selidrillers are designed for use under the extreme conditions of construction site environments.
The high performance of Tenn DX Selfdrillers in terms of drilling speeds, fastening quality and durability reflect our twenty years of technology leadership, engineering and manufacturing expertise, In-depth knowledge of the practical requirements of end users within the construction industry enables serving specific trades and customers’ needs with full product performance confidence.
The drillpoint is the key factor in self-driling screw performance. DX self-drilling screws are characterized Vy aggressive drillpoints that are made possible by state-of-the-art cold forging technology and tooling. Produced to Tenn’s exacting specifications, sharp and consistent points are found on all DX Selfdrillers.
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The DX drillpoint closely resembles the drillpoint of a split-point twist drill bit. In the Tenn DX sell all the performance elements – point diameter, point angle, web thickness and flute length – have been carefully calibrated and combined for rapid penetration, The thin chisel edges assure immediate non-walking starts while raked cutting lips, wide spacious flutes and a tapered entry thread provide aggressive penetration with low manual pressure.
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Drill Flute
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The length of the drill flute I, controls the metal thickness drillable. The chips generated during the drilling process are evacuated through the drill flute. If the flute becomes completely embedded in material, drill chips will clog up in it and the cutting action will cease. This will cause the drill tip to anneal i.e. burn up, or break.
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Point Length
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Screw threads advance seven to ten times faster than the drill flute can remove metal. The point length PL (the unthreaded portion from the tip to the first thread) should be long enough to allow the drilling of all materials to complete before the first thread engages material. The point length therefore must be equal to, or greater than, the total thickness of material to be drilled, Where more than one sheet of material is involved the calculation of the total thickness to be drilled must include any insulation or voids between the top and bottom materials.
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For more information, please get in touch with us at : (603) 8941 3413 or Click Here For Our Enquiry Form.
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