How to remove defective screws with a screw extractor Screw extractors allow the removal of defective screws. A hole is first drilled in the centre of the screw after the centre has been properly center-punched. Then the screw extractor is screwed into the drilled hole counterclockwise (left-handed). An adjustable tap wrench or a tool holder …
Screw extractor: This allows you to unscrew defective screws! Read More »
Pipe threads are screwed connections which are particularly used in gas and water installations. In Europe, British Whitworth pipe threads (BSP and BSPT) are the most common. While in the USA the American NPT and NPTF are more common. Both British and American pipe threads are inch threads. This means that the pitch is given …
The 4 best known pipe thread types at a glance ( NPT | NPTF | BSP | BSPT ) | GSR Blog Read More »
Tripod thread for Smartphone Gimbals In this blog post we want to take another look at the topic tripod thread under a new approach. What is a tripod thread? And what is the purpose of the tripod thread on a Smartphone Gimbal? Enjoy reading! What is a Smartphone Gimbal? The Smartphone is nowadays always with …
Trapezoidal thread on the spindle In today’s blog post we would like to take a closer look at the trapezoidal thread. What is a trapezoidal thread? What is a trapezoidal thread spindle? Why are trapezoidal threads mostly used as motion threads? Which manufacturing processes are common for trapezoidal threads? What are the core hole dimensions for the trapezoidal …
Angle of rake – The angle of rake of the tap The rake angle determines the rake foot of the material and thus determines the cutting performance of the tap. It must therefore be adapted to the mechanical properties of the material to be machined. For this reason, the individual materials are combined into material …
The angle of rake of the tap – Threadingtool guide Blog Read More »
Thread profiles – Determining variables on the thread In today’s article we will take a closer look at thread profiles. The main focus is on the outer diameter, the core diameter, the flank diameter. The determinants of the diameters on a thread A thread is essentially determined by the following diameter sizes: Outer diameter: The …
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Helpful and interesting facts about core drilling Before you can cut an internal thread, you must drill a core hole. A core hole is the hole into which an internal thread is cut. The core hole is drilled using a twist drill. Synonyms used in this context for the twist drill are core hole drills or core …
Core hole drilling – helpful and worth knowing | GSR Blog Read More »
HSS vs. HSSE Today we want to take a closer look at the question whether HSS-E is generally better than HSS. What are the main differences? Is it called HSSE or HSS-E? And what in turn is HSS-PM? Which is better: HSS or HSSE? Usually threading tools are made of High Speed Steel (HSS). The …
HSS vs. HSSE – What is HSS-E? What is HSS? Which is better? Read More »
A basic distinction is made between the soft machining and the hard machining of a tap. First of all, the blank is brought into its basic shape in the soft state by turning. Then the square is milled. Then the blank is hardened and tempered. The aim of the hardening process is to increase the …
The gate forms of taps play a very decisive role When cutting internal threads, all the cutting work is done by the teeth of the gate. The decision on the most suitable form of lead-in must therefore be made very carefully. This is because the gate influences not only the quality of the thread but …