Economy Titanium Coated Step Drill Bit 3/16"-1/2" (6 Steps)

ECONOMY TITANIUM COATED STEP DRILL BIT 3/16"–1/2" – 6 STEPS

Create 6 clean, precise hole sizes from 3/16" through 1/2" with one economy TiN-coated step drill bit. Designed for drilling and enlarging holes in thin materials, this bit eliminates repeated drill-bit changes while producing controlled holes in sheet metal, aluminum, copper, plastic, wood, and other compatible materials. The progressive stepped profile lets you move gradually to the required diameter instead of switching between multiple conventional drill bits.

The high-speed steel body features a titanium nitride (TiN) coating for enhanced cutting speed and wear resistance, while the self-centering split point helps reduce walking as the cut begins. A spiral double-flute design improves chip removal and helps extend cutting life, carrying chips away as the bit progressively drills and reams the hole to the desired size. Ideal for clean hole-making in metal up to 1/4" thick and other thin materials.

Product Specifications

Features

• 6 hole sizes in one bit from 3/16" through 1/2"
• High-speed steel construction
• Titanium nitride coating enhances cutting speed and wear resistance
• Self-centering split point helps prevent wobbling and reduce walking
• Spiral double-flute design promotes faster chip removal
• Improved chip evacuation helps extend cutting life
• Progressively drills and reams holes to the desired diameter
• Eliminates repeated drill-bit changes
• Designed for clean, precise holes in thin materials
• 3-flat shank helps resist slipping in a compatible drill chuck

Applications

• Drilling multiple hole diameters with one bit
• Enlarging existing holes
• Sheet metal fabrication
• Electrical enclosure and panel work
• Automotive and equipment repair
• HVAC work
• Maintenance and repair
• General fabrication
• Controlled chamfering and deburring

Materials

Ideal for drilling clean holes in:

• Sheet Metal
• Aluminum
• Copper
• Plastic
• Wood

Additional applications include:

• Steel
• Iron
• Stainless Steel
• Cast Iron
• Composites
• Fiberglass

Machine Compatibility

The 3-flat shank is designed for use in compatible adjustable drill chucks.

Compatible examples include:

• Corded drills
• Cordless drill/drivers
• Rotary drills
• Drill presses
• Pillar drilling machines

Use an adjustable drill chuck that securely grips the 3-flat shank, and match the tool’s capacity and speed to the hole size and material.

Safety Tips

• Wear eye protection and appropriate hearing and respiratory protection. Keep gloves and loose clothing away from rotating parts.
• Secure or clamp the workpiece before drilling.
• Keep the bit at approximately 90° to the work surface.
• Progress through the steps gradually rather than forcing the bit.
• Use steady pressure and allow the cutting edges to do the work.
• Select drilling speed according to the material and hole diameter.
• Use an appropriate cutting lubricant when drilling metals.
• Stop the tool before clearing chips; use a brush, not your hands.
• Do not use hammer action when drilling with a hammer drill/driver.
• Secure the shank according to the tool’s chuck instructions and check retention before drilling.