Cyclone HSS Premium Grade Annular Cutter, 9 16 in dia x 2 in Depth, 3 4 in Weldon Shank, Includes Pilot Pin no checkout Convert your favorite Sellstrom® or Convert your favorite Sellstrom® or Jackson Safety welding helmet to a flip front style Made with 2 lift up finger handles Constructed with durable nylon material Perfect for a wide variety of small and large jobs This glove is constructed with a two way form fitting stretch Spandex top and stretch panels between fingers for extra dexterity Evolution standard geometry is sufficient for most drilling applications Manufactured specifically to maximize hole accuracy while minimizing cutter vibration and extending annular cutter life Using this standard geometry enhances accuracy and saves time This allows for a single ejection of slugs when drilling through stacked material