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Richelieu 21-piece high-speed steel drill bit set in steel finish

RICHELIEU

RICHELIEU 240660 21-Piece Drill Bit Set

SKU CH-QZJY-0GCZK

Set of 21 high-speed steel drill bits for ferrous and nonferrous metals, plastic, and wood

  • ColorSteel
  • 21-piece set covers many drilling tasks
  • High-speed steel works in metal, plastic and wood
  • 135° split-point tip starts cleanly on hard surfaces
  • Three-flat shanks from 4.76 mm prevent bit slippage
  • Brand new RICHELIEU quality for reliable DIY use

21-Piece High-Speed Steel Drill Bit Set

This RICHELIEU 240660 set contains 21 high-speed steel drill bits designed for do-it-yourself tasks in ferrous metals, nonferrous metals, plastic and wood. It is intended for general workshop and home repair jobs rather than heavy industrial production. The bits are not recommended for hard metals such as stainless steel.

Three-Flat Shank and Split-Point Tip

Sizes of 3/16 in (4.76 mm) and larger feature three flats on the shank to improve grip in the drill chuck and reduce slippage. Bits of 1/8 in (3 mm) and larger have a 135° split-point tip that removes the need for a centre punch and prevents the drill from walking on hard surfaces. These features help the set integrate smoothly with standard drill chucks.

Sustained Drilling in Softer Materials

Under continuous use the high-speed steel construction maintains cutting performance in wood, plastic and softer metals without the overheating issues that can affect harder alloys. The split-point geometry keeps the bit centred during extended drilling sessions. The set is not suited for prolonged work in stainless steel or other hard metals.

Highlights

  • 21-piece set covers many drilling tasks
  • High-speed steel works in metal, plastic and wood
  • 135° split-point tip starts cleanly on hard surfaces
  • Three-flat shanks from 4.76 mm prevent bit slippage
  • Brand new RICHELIEU quality for reliable DIY use

Specifications

BrandRICHELIEU
ColorSteel

Questions about this item

Which drill-bit size is the first to show wear when drilling stainless steel?

The set is not recommended for stainless steel, so no size is rated for that material.

How hot do the bits get during all-day drilling in mild steel?

High-speed steel bits warm up with sustained use; allow cooling breaks to maintain edge life.

What shank type does my drill chuck need to accept these bits?

Bits 3/16 in (4.76 mm) and larger have three-flat shanks; smaller bits use round shanks.

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