Package Included:10 x Drywall Plasterboard DimplerFeatures:PH2 bits for drywall screwsAutomatically sets screws to proper depth in drywall Shock-resistant tool steel Heat-treated to resist breakageThese are designed to be used with any power drill or cordless drillIncludes depth stop to limit screw penetration & damage to boardInstalls drywall screws easilyTotal Length: Approx. 25mm/ 0.98"