Bosch TI2139 3/16 In. x 3-1/2 In. Titanium-Coated Drill Bit

• 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

The Bosch line of titanium-coated drill bits offer speed helix design for 3x faster drilling speed versus standard drill bits. Surface hardened to penetrate tough materials, including stainless steel. Available in jobber length with 3/8 In. reduced shank.