A comprehensive overhead shot of the open Bosch MS4091 mixed accessory set, showcasing a professional variety of 91 pieces including titanium, masonry, and brad point drill bits, various screwdriver bits, nut setters, and a ratcheting screwdriver organized within a durable hard case.
Front view of the Bosch 91-piece drilling and driving set in its open carrying case, displaying the systematic organization of high-grade accessories for wood, metal, and masonry applications.
An instructional graphic highlighting that this professional Bosch bit set is best for wood, masonry, and metal, featuring specific icons for each material type to assist with project planning.
A detailed contents chart for the 91-piece drilling and driving mixed set, listing exact quantities and types of drill bits, insert bits, power bits, nut setters, and other essential tools like the magnetic pick-up tool.
An informational graphic emphasizing all-in-one convenience for wood, metal, and masonry projects, featuring the closed hard case with dimensional measurements of 12.60 inches wide, 9.10 inches high, and 2.76 inches deep.
Direct front view of the closed Bosch MS4091 hard storage case, showcasing the rugged blue and black design with red latches and a clear window to easily identify the 91 included accessories.
Perspective view of the high-quality Bosch mixed bit set case, highlighting the portable and secure storage solution designed to protect drilling and driving accessories on the jobsite.
A product comparison graphic displaying four different Bosch drilling and driving mixed sets, ranging from 34-piece to 91-piece options, to help users select the right accessory kit for their needs.
A real-world jobsite view of the Bosch 91-piece accessory set laid open on a metal workbench, demonstrating the easy accessibility of the various professional-grade bits during project execution.
An application shot showing a technician using a Bosch cordless drill with a driver bit from the MS4091 set to install an electrical outlet, demonstrating the practical use of these fastening solutions.
A person using a Bosch cordless drill with a driver bit from the MS4091 mixed accessory set to secure a heavy-duty black metal TV wall mount bracket to a wall.
Close-up of a technician using a Bosch 12V cordless driver and a Phillips head bit from the 91-piece accessory kit to install a brass strike plate on a white residential door.
A professional using a Bosch cordless drill with a specialized brad point wood bit from the MS4091 set to precisely drill a pilot hole into a white dresser drawer for hardware installation.
A collection of various Bosch drilling and driving mixed bit sets, including the 91-piece MS4091 professional kit, displayed open and closed on a wooden workbench in a workshop setting.
A comprehensive overhead shot of the open Bosch MS4091 mixed accessory set, showcasing a professional variety of 91 pieces including titanium, masonry, and brad point drill bits, various screwdriver bits, nut setters, and a ratcheting screwdriver organized within a durable hard case.
Front view of the Bosch 91-piece drilling and driving set in its open carrying case, displaying the systematic organization of high-grade accessories for wood, metal, and masonry applications.
An instructional graphic highlighting that this professional Bosch bit set is best for wood, masonry, and metal, featuring specific icons for each material type to assist with project planning.
A detailed contents chart for the 91-piece drilling and driving mixed set, listing exact quantities and types of drill bits, insert bits, power bits, nut setters, and other essential tools like the magnetic pick-up tool.
An informational graphic emphasizing all-in-one convenience for wood, metal, and masonry projects, featuring the closed hard case with dimensional measurements of 12.60 inches wide, 9.10 inches high, and 2.76 inches deep.
Direct front view of the closed Bosch MS4091 hard storage case, showcasing the rugged blue and black design with red latches and a clear window to easily identify the 91 included accessories.
Perspective view of the high-quality Bosch mixed bit set case, highlighting the portable and secure storage solution designed to protect drilling and driving accessories on the jobsite.
A product comparison graphic displaying four different Bosch drilling and driving mixed sets, ranging from 34-piece to 91-piece options, to help users select the right accessory kit for their needs.
A real-world jobsite view of the Bosch 91-piece accessory set laid open on a metal workbench, demonstrating the easy accessibility of the various professional-grade bits during project execution.
An application shot showing a technician using a Bosch cordless drill with a driver bit from the MS4091 set to install an electrical outlet, demonstrating the practical use of these fastening solutions.
A person using a Bosch cordless drill with a driver bit from the MS4091 mixed accessory set to secure a heavy-duty black metal TV wall mount bracket to a wall.
Close-up of a technician using a Bosch 12V cordless driver and a Phillips head bit from the 91-piece accessory kit to install a brass strike plate on a white residential door.
A professional using a Bosch cordless drill with a specialized brad point wood bit from the MS4091 set to precisely drill a pilot hole into a white dresser drawer for hardware installation.
A collection of various Bosch drilling and driving mixed bit sets, including the 91-piece MS4091 professional kit, displayed open and closed on a wooden workbench in a workshop setting.
BOSCH

Bosch MS4091 91 Piece Drilling and Driving Mixed Accessory Bit Set for Wood Metal and Masonry Professional Grade Fastening Solutions with Hard Case

Only 1 left
SKU: MS4091
$45.29 USD

Description

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The Ultimate All-In-One Solution: Bosch 91-Piece Professional Drilling and Driving Mixed Bit Set

The Bosch MS4091 91-Piece Drilling and Driving Mixed Bit Set is the definitive accessory kit for professionals and serious DIYers who demand versatility and convenience. This comprehensive collection features a high-performance selection of driver and drill bits engineered to tackle virtually any general fastening or drilling task. Whether you are working with wood, metal, or masonry, this set provides specialized solutions for every material. The included drill bits feature precision-engineered split tips that prevent "walking" and ensure clean, easy starts on even the hardest surfaces, while the driver bits are designed for maximum gripping power to reduce cam-out and protect screw heads from damage.

Organization and durability are at the heart of the MS4091 set. All 91 pieces are housed in a heavy-duty, impact-resistant hard case that makes tool management effortless on the jobsite or in the workshop. The kit includes a wide range of bit sizes, from 1/16" to 3/8", ensuring you always have the right fit for the task at hand. Beyond just bits, the set provides a variety of essential accessories that solve everyday drilling and fastening challenges in one portable package. Built to Bosch's rigorous quality standards, these bits are forged for long-lasting strength, making this set a reliable investment for any project involving furniture assembly, home repair, or professional construction.

Key Features

  • Comprehensive 91-Piece Kit: Features a massive selection of high-quality driver bits, drill bits, and specialized accessories.
  • Multi-Material Performance: Includes specialized bits designed specifically for high-efficiency work in wood, metal, and masonry.
  • Precision Split Drill Tips: Engineered to provide fast, easy drilling starts and prevent bit wandering during initial penetration.
  • Enhanced Bit-Gripping Power: Driver bits are precision-machined to ensure a secure fit, significantly reducing screw head damage.
  • All-In-One Convenience: Eliminates the need for multiple sets by providing all necessary fastening and drilling solutions in one box.
  • Rugged Storage Case: Heavy-duty hard shell case keeps bits organized, secure, and ready for transport between jobsites.
  • Professional Durability: Forged from premium materials for increased strength and longer accessory life under heavy use.

What's Included

  • (34) Driver Bits: Phillips, Slotted, Pozidriv, Torx, and Hex
  • (30) Drill Bits: Masonry, Metal (HSS), and Brad Point Wood Bits
  • (8) Nut Setters
  • (1) Magnetic Bit Holder
  • (1) Countersink
  • (1) Ratcheting Screwdriver Handle
  • (1) Telescoping Magnetic Pick-Up Tool
  • (15) Additional Miscellaneous Drilling and Driving Accessories
  • (1) Heavy-Duty Hard Storage Case

Specifications

Brand Bosch
Model Number MS4091
Total Piece Count 91 Pieces
Drill Bit Size Range 1/16" to 3/8"
Primary Material Compatibility Wood, Metal, Masonry
Bit Material High Speed Steel / Carbide Tipped
Case Type Hard Impact-Resistant Plastic
Assembled Weight 3.84 lbs.
Package Width 12.0 in.
Package Height 2.5 in.
Warranty Lifetime against Manufacturer's Defects

Pro-Tip: When drilling into metal, always use a lower speed and apply a drop of cutting oil to the tip of your HSS bit. This reduces heat friction, prevents the bit from dulling prematurely, and ensures a cleaner hole every time.