Compatible Models

The Bosch TI4139 12 pc. 3/16 In. x 3-1/2 In. Titanium-Coated Drill Bits (Bulk) is the correct replacement for the following model numbers.

Description

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 joober length with 3/8 In. reduced shank.

Benefits
Super-hard titanium coating lasts up to six times longer than high-speed steel
Titanium reduces heat for longer life
Self-starting point starts on contact
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
Balanced double flute eliminates chatter and vibration

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