Gluco Rx Fine Point Pen Needles Gluco Rx Fine Point Pen Needles provide a universal fit for all insulin pens (see Patient Information Leaflet for further information). Gluco Rx Fine Point Pen Needles feature a triple bevel needle for a smooth & more comfortable delivery system & are electropolished with high grade siliconisation for enhanced ease of injection. Their unique Maxflow technology provides an extra thin wall that allows maximum flow rate & reduced injection time & do not cause fragmentation. Gluco Rx Fine Point is the only pen needle brand offering a complete size range.