The angled handle is designed to reduce strain in either a flowing solvent system or a solvent bath. Bullet-shaped tip resists mushrooming. Durable, injection-molded handle with ribbed design for firm grip. Long-lasting, stiff Trialoy® polyester filament can be used in either solvent- or water-based cleaning solutions. 89650 and 89690 incorporate the specially designed Multijet® ferrule with an additional ring of solvent jets to wash debris from the cleaning head.