Feature(may vary by option.)

●✅ Two-fluted design provides faster,smoother cutting, provided with small pressure and the sets.
●✅ The 3-flat shank titanium drill uses a doubleedged design to make cutting smoother and smoother;Increases cutting speed with self-centering and prevents walking.
●✅ Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron sheet and many other types of sheet metal (excluding steel or any other harder metal).
●✅ Classic High Speed Steel With Titanium Coating For Proven Capability and Durability. Increases Cutting Speed With Self-Centering And Prevents Walking.
●✅ CORTOOL step drill bits are made of 100% genuine HSS 4241 steel, please be cautious of cheap substitues of low quality. Your customer satisfaction and 30-day warranty of step drill bit can be guaranteed.

[1  & 4   to 3  & 4   Step Bit]




[1  & 8   to 1  & 2   Step Bit]




[2-Piece Set]




[1  & 4   to 1-3  & 8   Step Bit]




[3-Piece Set]




[4-Piece Set (Spiral Flutes)]





Description

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High Durability & Universal Use

Cortool Industry-grade High Speed Steel (60HRC) stepp drill bits feature a titanium coating so they run cool and are made out of high speed steel for a long service life. The drill bits automatically deburr holes as you drill and the two-flute design provides faster, smoother cutting. Whether drilling in plastic, metal or wood, these drill bits cut great every time. Cortool step drill bits are compatible with majority brands of electric drills or bench drills on the market. Easy to store in toolbox or pocket.

Precision Drilling

Cortool step drill bit has 118° Split Point which provides fast cutting with 3-Flat Shank provides fast and precise cutting while prevents walking and shedding; Laser calibration offers accurate positioning assistance.

Dual-Flute Design

Cortool step drill bits are built with double flutes design clears particles quickly, decreases friction and heat for a faster, cooler and clean drilling performance.

wide applicationwide application

Instructions For Use

vertical drillvertical drill

Pressure and SpeedPressure and Speed

Use Lubrication Fluid/WaterUse Lubrication Fluid/Water

Workpiece SelectionWorkpiece Selection

Keep Vertical

Keep the drill bits vertical to the object when drilling and be sure to make both bit and workpiece stable. Tilted bit is prone to break.

Pressure and Speed

When using bits with a power drill, it is recommended to use them with low speed and drilling pressure.

Use Lubrication Fluid/Water

Friction will accumulate heat between bits and the material being drilled and pay attention to the heat, add water or coolant if necessary. USE water to extend the use life of step bits.

Workpiece Selection

Thick material are recommended to be drilled with drill press, which is more stable and adjustable and for high-efficient drilling, thickness of material shall be less than that of each step.

Technical Specifications

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#1: (12-Step Bit)

3/16", 1/4", 5/16", 3/8", 7/16", 1 /2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8"

#2: (11-Step Bit)

1/4", 25/64", 35/64", 11/16", 13/16", 7/8", 1", 1-1/8", 1-7/32", 1-1/4", 1-3/8"

Cool-running titanium coating lasts longer than uncoated bits. High speed steel for longer life. Automatically deburrs holes while drilling

Two-flute design gives you faster, smoother cutting. Flat sided round shank fits most drills

Material Indutrial Grade HSS 4241 With Titanium Coated
Split Point 118° X-Type With Sharp Self-Centering
Flute Type Dual-Flute
Shank Type 3/8" 3-Flat Hex Shank
Package Included 2 x Drill Bits WithBlister Card Package
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Whats in the box

  • step drill bit