Saipor 10pcs Magnetic Pentagon Head Screwdriver Bits Set 1/4 Inch Hex Shank Security Tamper Proof Pentagonal Drive Bit Five-Sided Figure Screw Driver Drill Bit for Electric Hand Screwdrivers, 50mm

£4.995
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Saipor 10pcs Magnetic Pentagon Head Screwdriver Bits Set 1/4 Inch Hex Shank Security Tamper Proof Pentagonal Drive Bit Five-Sided Figure Screw Driver Drill Bit for Electric Hand Screwdrivers, 50mm

Saipor 10pcs Magnetic Pentagon Head Screwdriver Bits Set 1/4 Inch Hex Shank Security Tamper Proof Pentagonal Drive Bit Five-Sided Figure Screw Driver Drill Bit for Electric Hand Screwdrivers, 50mm

RRP: £9.99
Price: £4.995
£4.995 FREE Shipping

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Description

Tri-groove or T-groove is a design for a security screw with a flat-topped conical head and three short radial slots that do not join in the center. The fasteners involved have heads that are hardened and tempered to withstand the driving torque without destroying the star points. The main practical difference is in driving screws into vertical surfaces: that close to a near-vertical surface to drive the screws into the drivers, Supadriv has superior bite, making screwdriving more efficient, with less cam out.

The design is often criticized for its tendency to cam out at lower torque levels than other "cross head" designs. The Slotted/Pozidriv is slightly different from the Slotted/Phillips (PH/S), and good use requires special screwdrivers. Torx Plus is an improved version of Torx that extends tool life even further and permits greater torque transfer compared to Torx.

This recess is optimized to fit on the threaded end of aerospace fasteners, allowing for higher torque and fewer issues with damage to the fastener or tool. The design was adopted by some parts of the aerospace industry, led by Lockheed in the early 1970s on the L-1011, but met with mixed results due to complaints of insert damage during installation. They are often used on items where the user is not likely to have a screwdriver when needed, such as recessed screws that attach cameras to tripod adapters, and battery compartments in some equipment such as children's toys. These specialized screws are usually used on electronics equipment, including some Nintendo handheld hardware, Sanyo and Kyocera cellular telephones, and Fuji digital cameras.

An External Torx version exists, where the screw head has the shape of a Torx screwdriver bit, and a Torx socket is used to drive it.Double hex is a screw drive with a socket shaped as two coaxial offset hex recesses; it can be driven by standard hex key tools. Torx Paralobe is a further improvement over Torx Plus, [48] claiming 50% increased drive system torque over Torx and 20% over Torx Plus. They can put emergency responders and the public at greater risk attending a non emergency and even cause complacency and risk fatigue with staff, pupils and members of the public, meaning that they are less likely to respond in a real emergency situation. These sizes do not necessarily describe a particular dimension of the drive shape, but rather are arbitrary designations. The design allows for higher torque application with reduced camming, slipping out and damaging the fastener.



  • Fruugo ID: 258392218-563234582
  • EAN: 764486781913
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