FLEX IN 3-Piece Titanium-Coated High-Speed Steel Step Drill Bit Set - Metric Sizes 4-12mm, 4-20mm, 4-32mm with 1/4" Hex Shank for Metal & Sheet Drilling

FLEX IN 3-Piece Titanium-Coated High-Speed Steel Step Drill Bit Set - Metric Sizes 4-12mm, 4-20mm, 4-32mm with 1/4" Hex Shank for Metal & Sheet Drilling

0.00 SR
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FLEX IN 3-Piece Titanium-Coated High-Speed Steel Step Drill Bit Set - Metric Sizes 4-12mm, 4-20mm, 4-32mm with 1/4" Hex Shank for Metal & Sheet Drilling
  • FLEX IN 3-Piece Titanium-Coated High-Speed Steel Step Drill Bit Set - Metric Sizes 4-12mm, 4-20mm, 4-32mm with 1/4" Hex Shank for Metal & Sheet Drilling
  • FLEX IN 3-Piece Titanium-Coated High-Speed Steel Step Drill Bit Set - Metric Sizes 4-12mm, 4-20mm, 4-32mm with 1/4" Hex Shank for Metal & Sheet Drilling
FLEX IN 3-Piece Titanium-Coated High-Speed Steel Step Drill Bit Set - Metric Sizes 4-12mm, 4-20mm, 4-32mm with 1/4" Hex Shank for Metal & Sheet Drilling

FLEX IN 3-Piece Titanium-Coated High-Speed Steel Step Drill Bit Set - Metric Sizes 4-12mm, 4-20mm, 4-32mm with 1/4" Hex Shank for Metal & Sheet Drilling

0.00 SR

  • The FLEX IN® 3-Piece Step Drill Bit Set is designed for precision hole drilling, enlarging, and deburring across thin sheet metals, aluminum, copper, PVC, and plastic panels. Manufactured from heat-treated High-Speed Steel (HSS) with a protective titanium-nitride coating, these bits offer increased surface hardness, reduced friction, and extended edge sharpness. The stepped cone design allows drilling multiple hole diameters with a single bit, eliminating the need to constantly swap drill bits during panel installation or electrical conduit layout. Equipped with a standard 1/4-inch hex shank that fits securely into quick-change drill chucks, impact drivers, and magnetic bit extensions without slipping. Comes as a complete 3-bit kit in a hanging blister card.

Specifications Table

Parameter Technical Specification
Brand

FLEX IN® ("we do it right")

Product Type

Metric Step Drill Bit / Cone Bit Set

Material Construction

High-Speed Steel (HSS) with Titanium Coating

Shank Type

1/4" (6.35 mm) Quick-Change Hex Shank

Bit Sizes Included

• Small: 4-12 mm (4, 6, 8, 10, 12 mm)


• Medium: 4-20 mm (4, 6, 8, 10, 12, 14, 16, 18, 20 mm)


• Large: 4-32 mm (4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32 mm)

Quantity Per Set

3 Pieces

Manufacturing Origin

Made in China

Suitable Materials

Sheet Metal, Stainless Steel Sheets, Aluminum, Brass, Plastic, PVC, Wood

Packaging

Sealed Clamshell Blister Pack

Key Features & Standards

  • Multi-Step Hole Expansion: Drills, enlarges, and deburs clean round holes across 15+ increment sizes with just 3 bits.

  • High-Speed Steel & Titanium Coating: Heat-resistant alloy steel construction with titanium coating ensures reduced thermal friction and enhanced corrosion resistance.

  • 1/4" Universal Hex Shank: Fits standard drill chucks, cordless drivers, and impact tools without spinning under load.

  • Self-Centering Split Point: Prevents bit skidding or wandering, allowing clean starting holes without pre-punching.

  • Comprehensive Size Coverage: Spans 4 mm to 32 mm diameter ranges for electrical box cutouts, HVAC ductwork, and automotive panel modifications.

⚠️ Safety Warning: Always wear ANSI-approved eye protection (safety glasses) and work gloves during drilling operations. High friction generates elevated temperatures; apply cutting fluid or cooling lubricant when drilling metal sheets. Ensure the sheet material is firmly clamped down to prevent spin-around injuries.

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