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The ROBERT BOSCH TOOL GROUP ITSQ13501 is a Square 1 impact-rated power bit designed for use with high-torque impact drivers in professional fastening applications. Measuring 3.5 inches in length, this bit is sold in a 5-piece pack. It features Bosch X-Tended Torsion Zone construction, which allows the bit shaft to flex under load rather than fracture, absorbing the rotational shock generated by modern impact drivers. Heat-treated manufacturing increases core strength compared to standard impact bits, and precision-engineered tips reduce cam-out during fastening. A high-visibility sleeve with laser-etched markings makes bit identification fast in the field.
The ITSQ13501 is suited for residential and light commercial construction, finish carpentry, decking, and general fastening work where a Square 1 drive profile is required. Electricians, HVAC technicians, plumbers, and general contractors who use impact drivers for panel work, equipment mounting, or structural fastening will find this bit appropriate for repetitive high-torque driving cycles. The 5-pack quantity supports kit stocking and reduces job-site downtime from bit wear.
Designed for use with impact drivers accepting standard 1/4-inch hex shank power bits requiring a Square 1 drive profile.
Installation of this bit requires seating the 1/4-inch hex shank fully into the impact driver chuck before operation. Inspect the tip for wear before each use, as a worn tip increases cam-out risk and fastener head damage. Do not use impact-rated bits in drill-only or screwdriver-only tools not designed for rotational impact loads, as premature failure may result.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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