Interfast Bulk Electrogalvanized Round Top Metal Cap Nails 50LB FAF25204005CSG The variable flute allows for MIL48731311 The variable flute allows for maximum debris extraction leading to up 20% more holes per charge in cordless rotary hammers while making it a very durable bit in corded and cordless rotary hammers AUTO SHUT OFF™ control applies no more than 50 ft lbs of torque for hand tight fastening applications to prevent overtightening Metal Cap Nails from Interfast are designed for use in construction and roofing projects They are ideal for securing roofing materials to wooden decks and can be used for a variety of other applications as well