One-way shut-off valve — automatically stops airflow when disconnected

without damaging the fabric

100% silicone — acetic cure for superior glass adhesion

with no mercury and no warm-up time

Work well into the surface and allow to dry to a light haze

suttontools XP Bullet Jobber Metal Drill Bit 8.5mm D220H0850 Fits_4mm One-way shut-off valve — automaticallySuitable for drilling ferrous and non ferrous metals, wood and plastic. Made from High Speed Steels. Extreme Parabolic Flute Optimised design provides improved chip ejection and faster drilling speeds. Self Centring Geometry Precision split point delivers faster and more accurate hole placement. Cordless Drill Optimised Requires reduced drilling pressure resulting in improved battery life. Specifications: Diameter: 8. 5mm Overall Length: 117mm Drill