Bosch's bulk pack of titanium coated 5/16-in x 4-1/2-in jobber drill bits are designed for 3x faster drilling and surface hardened to penetrate through tough materials, including stainless steel. Shop more drill bits at HomElectrical today!
- Bulk Pack.
- Diameter: 5/16 Inch.
- Overall Length: 4-1/2 Inch.
- Shank: 5/16 Inch.
- Super-hard titanium coating lasts up to six times longer than high-speed steel.
- Self-starting point starts on contact.
- Balanced double flute eliminates chatter and vibration.
- Titanium reduces heat for longer life.
- Drills clean, accurate holes in these thin materials (up to 1/8-in): sheet metal, ducts, steel, copper, brass, aluminum, plastic, plexiglass, wood, veneers, vinyl siding, plasterboard, PVC, stainless steel and cast iron.