Tapping screws - Import export

Ready to install sprockets with hub on one side for DIN ISO 606 roller chains. Teeth are milled and inductively hardened. Keyway acc. to DIN 6885 / BS 4235. The keyway is aligned with the tooth tip. With two grub screws. One tapped hole aligned with the keyway centre, the other offset by 90°.

These supports are placed under long or thin workpieces to prevent vibration or bending during milling, drilling, grinding or shaping operations. The support can be accurately placed without the need to reach under the workpiece. The support pin contacts the workpiece under light pressure. It can be tightened in any position. Various types of pins can be screwed into the tapped hole in the thrust pin to adapt the support height. The supports 02380-075, 02380-150 and 02380-170 have only 1 slot.

Drillstar taper taps and die collars are manufactured from high-grade alloy steel and cemented to ensure the highest strength. They are available in a wide range of sizes, and can be equipped with different types of guides. Taper Taps Plain type Drillstar taper taps are either plain or fluted, with four longitudinal grooves which allow the easy evacuation of cuttings. The hardened cutting teeth (wickers) are available with either right-hand or left-hand spiral. Over a meter in length, the taps offer two particular advantages : First, they can be screwed into the washover subs, thus allowing the tap to be guided by an external tube. Secondly, due to the fine tapering of the threads, the tap can be screwed further into the fish head and will accept considerable pull without releasing the fish. Skirted type For difficult fishing operations, Drillstar Industries has developed a skirted taper tap. This rugged tool is composed of 3 pieces : 1.A taper tap with an upper pin thread. 2.A sk