Compatible Models

The Bosch TI4139IM 12 pc. 3/16 In. Impact Tough Titanium Drill Bits is the correct replacement for the following model numbers.

Description

Bosch Impact Tough™ Titanium Drill Bits provide 2X life over standard impact drill bits. Designed for use in the higher torque impact drill/drivers, they have an upgraded tip design for no-skate starts and a titanium cooling shield thanks to the titanium nitrate coating. The coating provides less friction and thus less generated heat. The bits have impact-rated shanks. Electricians, plumbers and HVAC pros will appreciate the tough construction of the bit, rated for heavy-gauge carbon steels, as well as light gauge metal and hardwood applications.

Benefits
No skate tip
accurate starts
Designed for heavy-gauge and high-carbon steel
Long flutes for effective material removal
Impact-rated shank for higher torque drill/drivers
Titanium coating for less friction
Laser marking clearly identifies diameter

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