Diablo High Speed Steel 17-Step Impact Step Drill Bit

Diablo High Speed Steel 17-Step Impact Step Drill Bit

The Diablo Step Drill Bit family brings exclusive technology to electricians, plumbers and HVAC contractors who need fast, accurate cuts and increased stability in thin metals, PVC and other plastic materials. Built in High Speed Steel with 17 laser-etched steps, this family is available with bit diameters ranging from 1/2 in. to 1-3/8 in. and overall bit lengths ranging from 2-19/32 in. to 3-3/8 in., giving pros the flexibility to match the bit to the job. Every size shares a 1/4 in. hex shank for use with drills and impact drivers, plus a Split Point Tip (132°) that eliminates the need for pre-drilling. Built for jam-free cuts in metal up to 1/8" thickness, PVC, other plastics and steel, this bit line is engineered for corded and cordless tool efficiency in high-speed mode.

Key Features

• Diameter Range: Available from 1/2 in. to 1-3/8 in. across 17 laser-marked steps for drilling holes of varying sizes with easy-to-read markings.
• Length Range: Overall bit lengths from 2-19/32 in. to 3-3/8 in. depending on selected size, providing reach and stability across applications.
• Durable Construction: High Speed Steel with an optimized dual flute design delivers jam-free cuts, while an Automated Precision CNC Grinding Process holds strict angle tolerances on each step for minimal bit wear and 2X faster cuts.
• Split Point Tip: 132° Split Point Tip design enables a fast, on-point start that makes pre-drilling obsolete, resulting in increased durability and up to 6X longer life.
• Connection Type: 1/4 in. hex shank allows use with both drills and impact drivers, and every bit is impact ready.
• Increased Step Heights: Taller steps at common hole sizes make drilling more efficient and faster for repetitive production work.
• Battery Efficiency: Exclusive design delivers corded and cordless tool efficiency in high-speed mode for up to 75% more holes per battery charge.
• Material Capability: Ideal for metal up to 1/8" thickness, PVC and other plastic materials, plus general steel cutting applications.

Technical Specifications

• Product Material: High Speed Steel
• Country of Origin: Switzerland
• Bit Diameter Range: 1/2 in. - 1-3/8 in.
• Bit Length Range: 2-19/32 in. - 3-3/8 in.
• Steps: 17
• Shank: 1/4 in. Hex
• Product Size: 7/8 in. - 1-1/8 in.

Typical Applications

• Electrical Box and Panel Hole Drilling
• Plumbing Pipe and Fitting Preparation
• HVAC Sheet Metal and Ductwork Fabrication
• Drilling in Thin Metals, PVC and Other Plastics
• Production Drilling with Drills and Impact Drivers

Why Diablo?

Diablo's Step Drill Bit family combines a Split Point Tip, dual flute design and Automated Precision CNC Grinding Process to deliver faster cuts, longer life and more holes per battery charge for professional electricians, plumbers and HVAC contractors. With laser-etched step markings, a 1/4 in. hex shank built for impact-ready performance, and a full range of High Speed Steel diameters and lengths to choose from, this bit line is engineered to keep production drilling fast, accurate and efficient on metal, PVC and other plastic materials.