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Transparent case holding 17 drill bits in molded slots

MIBRO

MIBRO 871490 17-Piece Drill Bit Set

SKU CH-DC0K-NMPRM

17-piece set combines 12 titanium-coated HSS bits and 5 carbide masonry bits with 135° split-point tips and 3-flat shanks in a heavy-duty MBX case

  • ColorTransparent
  • 17-piece set covers wood, metal and masonry drilling
  • 12 titanium-coated HSS bits with 135° split-point tips start on contact
  • 5 slow-spiral masonry bits with micro-grain carbide for brick and concrete
  • 3-flat shanks on all bits prevent chuck slippage
  • Heavy-duty MBX case with rubber corners protects bits from impact

Ideal set for home DIY drilling

This 17-piece handyman's set covers general-purpose drilling in all wood types, plastics, soft and mild metals, and most masonry. It combines 12 titanium-coated HSS jobber bits with 5 slow-spiral rotary masonry bits for versatile household tasks.

Coated bits and slow-spiral flutes change daily use

The 135° split-point tips on the HSS bits start on contact with less force and eliminate walking across the work surface. Masonry bits use premium micro-grain carbide with wide slow-spiral flutes that remove debris efficiently even in damp material.

Heavy-duty MBX case protects the investment

Molded rubber corners on the patented case absorb hard impacts during transport and storage. Both bit types feature 3-flat shanks that lock securely into the chuck, preventing slip under load. Not for buyers needing larger diameters or hammer-drill SDS shanks.

Highlights

  • 17-piece set covers wood, metal and masonry drilling
  • 12 titanium-coated HSS bits with 135° split-point tips start on contact
  • 5 slow-spiral masonry bits with micro-grain carbide for brick and concrete
  • 3-flat shanks on all bits prevent chuck slippage
  • Heavy-duty MBX case with rubber corners protects bits from impact

Specifications

BrandMIBRO
ColorTransparent

Questions about this item

How often will the titanium coating on the 12 HSS bits need replacement?

The titanium coating is a surface treatment that wears gradually with use; when cutting performance drops, the bits themselves are replaced rather than re-coated.

What limits continuous drilling with the 135° split-point tips before they overheat?

Heat buildup in the workpiece and bit is the first limit; using cutting fluid and clearing chips regularly lets the 135° split-point tips run longer without losing temper.

How much noise and heat do the 5 carbide masonry bits generate during all-day rotary drilling?

Rotary masonry drilling produces moderate vibration and dust rather than high noise; the carbide tips stay cooler than hammer-mode bits, and the slow-spiral flutes eject damp debris efficiently.

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