3/4" x 1/4" Shank |Mag-Bit 790.1216| Spade Bits | 10 Piece ferrules Use Zinc plated self-drilling screws

Use Zinc plated self-drilling screws for attaching drywall (gypsum board) to 20-12 gauge metal studs

Dacrotizing greatly minimizes the risk of hydrogen embrittlement so baking the part is not required after the finish is applied

Drill Size: 3/8

For wood trim and base over drywall (gypsum) to light gauge steel or wood stud

3/4" x 1/4" Shank |Mag-Bit 790.1216| Spade Bits | 10 Piece ferrules Use Zinc plated self-drilling screws16" OAL Most economical way to bore holes in wood 1 4" Quick Change Shank Forged steel for high cutting quality & strength Fish eye hole Two spurs make these economically priced hole makers extremely aggressive.