Repco Technology Ltd.
3 Fairlands Park
Telephone: 02476 419808
Fax: 02476 690717
To achieve the optimum results from your OMEGA feed fingers, the drilling operation should be performed in a precise way.
Overheating the synthetic material during drilling can change both the characteristics of it's operation and also the final size of the hole. The use of non-chamfered bar will greatly reduce the life of the material.
For round bar it is recommended that a hole is drilled 0.5mm smaller than the bar to be handled. For square and hexagonal bar, we recommend you drill a round hole 0.7mm smaller than the dimension across the corners. It should be noted that the 0.5mm interference is the maximum for a round section bar, this will generally be too tight for most applications, and you should experiment to find the optimum drill size for your size of bar and drill type - THE RIGHT FEEL IS THE RIGHT SIZE!
The drilling operation should be performed at a high rpm with a slow feed rate, using a sharp drill. The use of 'bright finish, quick spiral' drills will give the best results. The same procedure should be followed when opening up the bore to a larger size.