Feature

●Size Includes - One drill with 15 steps: Includes 3/16",1/4", 5/16", 3/8", 1/2", 9/16", 5/8", 11/16", 13/16", 7/8", 15/16",1", 1-1/8", 1-3/16",1-1/4" (4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm), Which can fit the majority of brands currently on the market.
●HSS Titanium Coating - High speed steel along with titanium coating ensures outstanding durability and sharpness, can reduces the friction, runs cooler.
●Two-flute Design - 1/4 hex shank fits into power tools chuck securely and eliminates slip; The drill tip adopts a 135°bifurcated tip design, prevents the step drill bit from slipping during operation.
●Clear Laser Measurements - The well-manufactured bits come with very highly visible laser measurements for you to easily find the size you want, improving your drilling accuracy.
●A Must-Have for Handyman or Professionals - Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron and many other types of soft metal sheet.


Description

15 Sizes Titanium Step Drill Bit, 4mm-32mm (3/16" to 1-1/4") High Speed Steel Step Drill Bits for Sheet Metal Hole Drilling Cutting, HSS Multi Size Unibit Drill Bits DIY Lovers, Multiple Hole Stepped up Bits

Two-Flute Design
Removes chips faster, lets particles escape easily, and allows for smooth cutting.

Accurate Drilling
Laser engraved sizes provides accurate positioning assistance for precise drilling.

Easy to Use
You can process different kinds of diameter holes in just one step, which greatly saves you a lot of trouble.

Wide Application
You can process different kinds of diameter holes in just one step, which greatly saves you a lot of trouble.

Specification:
Material: HSS
Size: 15 sizes
Surface: Titanium Coating
Drilling Sizes: 4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm (3/16",1/4", 5/16", 3/8", 1/2", 9/16", 5/8", 11/16", 13/16", 7/8", 15/16",1", 1-1/8", 1-3/16",1-1/4")
Multi-purpose: Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron and many other types of sheet metal (excluding steel or any other harder metal).

Kindly Note:
1. When inject cold water while working, can effectively extend the service life of the drill bit.
2. It is recommanded that when using the step drill bit, the metal thickness is less 3 mm.
3. Made of HSS material, suitable for workpieces with hardness below 25 HRC.