The Stepper Titanium Step Drill Bit, 1/4" to 1 3/8"

Multi-Size Drill Bit for Net Pots and Reservoir Openings

Cutting net pot holes, cord ports, or fitting openings in reservoirs and lids usually means keeping several fixed-diameter bits on hand, and reaching for the wrong one mid-project slows the build down. This titanium-coated step drill bit cuts a full range of holes, from 1/4in to 1 3/8in in 1/8in increments, from a single tool.

Heat-treated HSS construction with a titanium nitride coating and a self-starting tip means the bit goes straight into plastic or thin metal without a pilot hole, which suits both DIY reservoir builds and routine grow room fitting work.

Key Features & Benefits

• Wide Size Range — Cuts holes from 1/4in to 1 3/8in in 1/8in increments from a single bit.
• Titanium Nitride Coating — Heat-treated HSS construction with a titanium nitride coating for durability.
• Double Flute Design — A double flute allows for easier control while drilling.
• Self-Starting Tip — No walking or pilot hole needed before drilling begins.

Who Should Use This Step Drill Bit

Growers setting up net pots, irrigation lines, or other grow system components that require multiple hole sizes will find this bit useful, since one bit replaces several fixed-size bits.

About Active Aqua

Active Aqua is a hydroponic hardware and equipment brand distributed by Hydrofarm, covering reservoirs, pumps, and grow system accessories.

Frequently Asked Questions

What size range does this bit cover?

It cuts holes from 1/4in up to 1 3/8in, moving up in 1/8in increments along the bit's length. That range covers most net pot and reservoir fitting sizes without switching tools.

How do I use a step drill bit versus a fixed-diameter bit?

Position the tip where the hole is needed and drill in; as the bit advances, each step cuts a progressively larger diameter, so you stop drilling once the hole reaches the size you want. This replaces the need to swap between several fixed-size bits for different hole sizes.

Does this bit need a pilot hole?

No, the self-starting tip is designed to bite into the material without walking, so no pilot hole is required. This makes it faster to use across multiple holes in a single build.

What is the bit coated with?

It is constructed from heat-treated HSS (high-speed steel) with a titanium nitride coating. The coating adds wear resistance for repeated use across grow system builds.

What does the double flute design do?

The double flute gives the bit two cutting edges instead of one, which allows for easier control and a cleaner hole as it steps up through diameters. It also helps clear material out of the hole as you drill.