K.balt 24-volt Collated Fastener Brushless Screw Gun ( Charger Not Included ) The 24-Volt Collated Drywall Screwgun Attachment attaches easily onto the Kobalt 24-Volt Drywall Screwgun, Lowe's item #1260305 (sold separately). This attachment will accept collated drywall screws from 1-inch to up to 2-1/8-inch in most brands carried by stores. The attachment is backed by Kobalt's 5-year limited warranty.