HARDEN Step Drill Bit | 4–32mm Range | 2mm per Step | Titanium Coated HSS | Model: 614132

A high-performance step drill bit designed for clean, precise hole enlargement in sheet metal, plastic, wood, and other thin materials. Made from heat-treated HSS with a titanium coating, this bit offers 15 steps (2mm increment per step) for versatile hole sizing without the need for multiple drill bits.

🔹 Specifications

Brand: HARDEN

Model: 614132

Type: Step Drill Bit (Unibit / Cone Drill)

Material: High-Speed Steel (HSS), Heat-Treated

Coating: Titanium Nitride (TiN) – Reduces Friction, Increases Durability

Hole Range: 4mm to 32mm (in 2mm increments)

Increments: 15 Steps (2mm per step)

Shank: 3/8" (10mm) Hex Shank for Secure Chuck Grip

Total Length: Approx. 135mm (varies by manufacturer)

Application: Sheet Metal, Plastic, Wood, Drywall, Aluminum

🔹 Key Features

Titanium Coating – extends bit life, reduces heat buildup, and prevents corrosion.

2mm per Step Design – allows precise hole sizing from 4mm to 32mm.

Heat-Treated HSS Construction – maintains sharpness and resists wear.

Hex Shank – prevents slipping in the drill chuck and ensures stable drilling.

Gradual Step Design – reduces burring and provides smooth, clean holes.

Versatile Use – suitable for metal, plastic, wood, and composite materials.

Saves Time & Tools – replaces multiple drill bits for hole enlargement tasks.

🔹 Step Sizes (Approximate)

Step 1: 4mm

Step 2: 6mm

Step 3: 8mm

Step 4: 10mm

Step 5: 12mm

Step 6: 14mm

Step 7: 16mm

Step 8: 18mm

Step 9: 20mm

Step 10: 22mm

Step 11: 24mm

Step 12: 26mm

Step 13: 28mm

Step 14: 30mm

Step 15: 32mm

🔹 Applications

Ideal for drilling/enlarging holes in:

Electrical boxes and panels

HVAC ductwork and pipes

Automotive sheet metal

Plastic containers and enclosures

Drywall and wooden panels

Light-gauge metal fabrication

DIY projects and household repairs

🏷️ Product Tags

Step Drill Bit, Unibit, Cone Drill, Titanium Coated Drill Bit, Metal Drill Bit, Hole Enlargement Bit, HARDEN Tools, Sheet Metal Drill, Multi-Step Drill, 614132

#Tags

#HARDEN #StepDrillBit #Unibit #TitaniumCoated #MetalDrilling #DIYTools #SheetMetalTools #614132 #DrillBit #HSS