S.S. Sink Drill, 3/16 - 3/4

The AC-28 Stainless Steel Sink Drill is a specialty hole-cutting tool sized to bore openings from 3/16" up to 3/4", a range that covers the typical mounting holes needed when installing water-treatment faucets, air gaps, soap dispensers, and accessory fittings. Sourced through Grainger, it is built for the kind of clean, controlled cuts that installation work in stainless steel and other sink materials demands.

When fitting a reverse osmosis faucet or an accessory tap to a kitchen sink, drilling a precise hole is one of the most critical and nerve-wracking steps of the job. A tool made specifically for the task greatly reduces the risk of cracking the sink, wandering off the mark, or leaving rough, burred edges that make a fitting sit poorly. This drill's graduated cutting range lets an installer match the bore to a faucet shank or fitting without juggling several separate bits.

Features

• Stainless steel sink drill for water-treatment installations
• Cutting range: 3/16" to 3/4"
• Sized for RO faucets, air gaps, and accessory fittings
• Suited to drilling sink decks and similar mounting surfaces
• Sourced through W. W. Grainger

For professional installers and serious DIYers building out an under-sink RO system or adding a dedicated drinking-water faucet, having the right drilling tool on hand makes the difference between a quick, tidy job and a frustrating one. The stepped 3/16" to 3/4" capability gives flexibility across a variety of faucet shanks and accessory hole requirements commonly encountered in point-of-use water-treatment work, so a single tool can handle most common installations.

As with any cutting tool, steady pressure, appropriate lubrication, and proper eye protection help produce a clean opening and extend the tool's working life across many installations. Whether you are mounting an RO faucet, an air-gap fitting, or a dispenser, the AC-28 stainless sink drill is a useful addition to any water-treatment installer's kit, helping ensure a professional finish on every job.

Keep a spare available in the truck or shop, since a sharp, purpose-built sink drill saves time on every faucet and accessory installation and helps avoid costly damage to a customer's sink. From a single under-sink RO faucet to a full kitchen retrofit with multiple accessory taps, the AC-28 helps ensure each mounting hole is clean, accurate, and ready for a leak-free fitting.