

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The ROBERT BOSCH TOOL GROUP ITPH1105 is a Phillips 1 impact insert bit designed for use with high-torque impact drivers. Sold in a 5-pack, each bit measures 1 inch in length and is built to handle the demands of professional fastening work. The X-Tended Torsion Zone flexes under load to absorb peak torque, reducing stress on both the bit and the fastener. Precision-engineered tips provide a tighter fit at the screw head, minimizing cam-out. Heat-treated manufacturing increases core strength for a service life rated at 10 times that of standard insert bits. A high-visibility sleeve with laser-etched markings allows for quick identification on the jobsite.
The ITPH1105 is suited for residential and commercial construction, cabinetry, decking, and general assembly work where impact drivers are the primary fastening tool. The 1-inch insert format fits standard quick-change bit holders and impact driver chucks. Electricians, carpenters, and general contractors who run impact drivers in repetitive fastening applications will find the torsion-zone design reduces bit breakage and bit-tip wear over the course of a workday.
Designed for use with standard quick-change impact driver chucks and bit holders accepting 1-inch insert bits with a 1/4-inch hex shank.
Insert the bit fully into the tool chuck and confirm it is locked before applying load. Ensure the bit tip is fully seated in the fastener recess before driving to reduce cam-out and tip wear. Inspect bits regularly for tip deformation and replace worn bits promptly to avoid fastener damage. Always wear appropriate eye protection when operating impact drivers.
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.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!