1/2 x 12-In. High-Speed Black Oxide Drill Bit Brand_O'Keeffe's Locking wrench adjusts to a

Locking wrench adjusts to a range of standard and metric wrench sizes

Has hardened

Use in hand-held or table-mounted routers to cut hard or soft wood

Stable and safe-to-use

1/2 x 12-In. High-Speed Black Oxide Drill Bit Brand_O'Keeffe's Locking wrench adjusts to aMaster Mechanic, 1 2" x 12", Extra Length High Speed Steel Black Oxide Drill Bit, 135 Point Angle With 4 Cutting Edges Which Eliminate Walking & Provide Fast Penetration, Black Oxide Tempering Treatment Reduces Frictional Resistance & Improves Chip Flow, Recommended For Wood, Plastic, Wallboard, Plywood & Soft Metals, Aluminum, Brass, & Bronze, For Occasional Use In Stainless Steel & Other Hard Metals, Carded.