Itm xstp-04 Step Drill Bit 3/16 to 7/8 Inches 12-step

Product Description

The ITM xstp-04 is a 12-step cobalt steel step drill bit designed for trade professionals who need clean, precise holes across a range of diameters in a single tool. Built from M35 cobalt steel and finished with a TiAlN (Titanium Aluminum Nitride) coating, it handles high-heat drilling applications where standard HSS bits fall short. The four-spiral-flute design evacuates chips aggressively, reducing heat buildup and extending cutting life. The 1/4 inch hex shank seats directly into standard impact drivers and quick-change chucks, making it practical for both bench and field use.

This step bit covers 12 diameter increments ranging from 3/16 inches to 7/8 inches, making it well suited for electricians drilling conduit knockouts, HVAC techs punching sheet metal enclosures, and plumbers working through light-gauge steel or aluminum panels. The stepped profile eliminates the need for multiple pilot holes and delivers consistent, burr-minimal results in thin materials. It is appropriate for both residential and light commercial service work where speed and tool versatility matter.

Key Features

• M35 cobalt steel construction handles high-temperature drilling without premature edge failure
• TiAlN coating extends tool life and reduces friction on ferrous and non-ferrous materials
• 12 cutting steps provide a range of 3/16 inches to 7/8 inches in one bit
• 4-spiral-flute geometry promotes fast, efficient chip evacuation during drilling
• 1/4 inch hex shank is compatible with standard impact drivers and quick-change drill chucks

Compatibility

Designed for use with 1/4 inch hex shank quick-change drill chucks and impact drivers. Suitable for drilling thin-gauge steel, aluminum, sheet metal, and similar materials common in HVAC, electrical, and plumbing service applications.

Installation Notes

Step drill bits of this type are installed and removed by trade professionals using standard quick-change or keyed chucks rated for 1/4 inch hex shanks. Secure the workpiece before drilling and use appropriate cutting speed for the material being drilled. Eye protection is required; chip ejection from spiral flutes is aggressive. Apply cutting oil when drilling harder ferrous materials to preserve coating life and edge sharpness.