Infinity Tools Adjustable Drill Depth Stops – Universal Two-Piece Dual Set-Screw Design, Fits 1/8?–1/4? & 1/4?–1/2? Bits (1/4" to 1/2")

Stop over-drilling your workpiece with the Infinity Tools Adjustable Drill Depth Stops — engineered for accuracy, versatility, and ease of use. These depth stops use a two-piece, dual set-screw design that clamps evenly from both sides, preventing cam-out or slipping even on bits with irregular flutes. Choose between two models: 101-115 adjusts from 1/8″ to just over 1/4″ 101-116 adjusts from just over 1/4″ to just over 1/2″ These stops stay square to the drill bit’s axis for accurate, repeatable depth control and feature rounded bottom edges so you don’t mar your workpiece when the stop contacts the wood. Instead of keeping dozens of fixed collars, you just need one or two adjustable depth stops to cover most sizes, simplifying your setup. FineWoodworking tested them and found them particularly handy for hand-held drilling, offering solid grip over a broad bit range and avoiding tape-flags that shift.

• Universal fit – 101-115 covers 1/8″ to just over 1/4″; 101-116 covers just over 1/4″ to just over 1/2″.
• Dual set-screw design – locks securely on bit, resists cam-out, avoids slipping.
• Square seating – ensures depth stop stays square to the bit’s axis for accurate depth control.
• Rounded bottom edges – won’t mar your workpiece surface when it contacts the wood.
• Fewer parts, simpler shop – one or two stops replace the need for a full collar set.