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Orange 15-piece countersink drill bit set with hex shanks and replaceable bits

NSI

NSI 15Pcs Countersink Drill Bit Set 2.5 2.8 3 3.2 3.5mm Orange

SKU CH-8DXR-ZXW7A

Fifteen-piece countersink set with five sizes, replaceable bits, hex wrenches and 90° angle for wood, plastic and MDF

  • Labor warranty1 Year
  • Size or dimensions2.5 mm, 2.8 mm, 3 mm, 3.2 mm, 3.5 mm
  • Main materialHigh-Speed Steel, Tungsten Steel, 45# Steel
  • Product typeHammer Drill Accessories
  • Key featuresUsed for wood opening, aluminum alloy screw counte
  • Parts warranty1 Year
  • 15-piece set covers five drill sizes for versatile woodworking tasks
  • High-speed steel and tungsten steel construction resists wear during repeated use
  • 90° countersink angle produces clean, consistent holes in wood and plastic
  • 1/4" hex shank fits standard drill chucks for quick bit changes
  • Adjustable drilling depth via five included hex wrenches for precise control

15-Piece Countersink Drill Bit Set

This 15-piece countersink drill bit set from NSI contains five countersink bodies in sizes 2.5mm, 2.8mm, 3mm, 3.2mm, and 3.5mm. It also includes five replaceable drill bits and five hex wrenches for adjustment. The kit is designed for woodworkers and DIY users who need to create clean, flush screw holes in a single operation.

1/4-Inch Hex Shank Compatibility

Each countersink body uses a standard 1/4-inch hex shank that fits directly into quick-change chucks and impact drivers. The shank type limits use to tools accepting this interface. The high-speed steel, tungsten steel, and 45# steel construction resists wear when drilling into hardwood, plywood, MDF, plastic, and aluminium alloy.

Five Sizes With Replaceable Bits

The five included diameters cover common pilot hole requirements for wood screws, while the replaceable bits extend the working life of each countersink body. The fixed 90-degree countersink angle suits standard flat-head screws. Users needing countersink angles other than 90 degrees or diameters outside the 2.5mm to 3.5mm range will require a different set.

How it compares

Measured against everything we stock in Power Drills, Drivers & Cutting Bits, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 91% of the 2,412 comparable items (median $81.99).

Specifications

Product
Brand nameNSI
Part numberN002787830
Product typeHammer Drill Accessories
Size & build
Size or dimensions2.5 mm, 2.8 mm, 3 mm, 3.2 mm, 3.5 mm
Main materialHigh-Speed Steel, Tungsten Steel, 45# Steel

Questions about this item

Which countersink sizes are included in the 15-piece set?

The set contains five countersink drill bits sized 2.5mm, 2.8mm, 3mm, 3.2mm and 3.5mm, each with a matching replaceable drill bit and hex wrench for depth adjustment.

What does the 90° countersink angle deliver in actual use?

A standard 90° angle produces clean, consistent conical recesses so flat-head screws sit flush with the surface in hardwood, plywood, plastic or MDF.

How does the 1/4" hex shank limit compatibility?

The 1/4" hex shank fits quick-change chucks and impact drivers directly, but requires an adapter for keyed or keyless three-jaw drill chucks.

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