Bosch Expert SelfCut Speed Spade Bit 16mm

The Bosch Expert SelfCut Speed Spade Bit 16mm is one of those bits that actually does what it says. If you’re drilling repetitive holes through joists, stud walls or door blanks, the difference between a decent spade bit and a great one becomes obvious pretty quickly. This bosch spade bit 16mm sits firmly in the latter camp. The self-feeding screw tip pulls the bit into the material rather than relying purely on operator pressure, which means less effort, more control, and a noticeably faster cut.

Bosch call it Tip Technology, and it’s the defining feature here. Rather than having to lean into the drill to get it moving, the thread does the work. That matters a lot when you’re overhead, drilling at an awkward angle, or working with a cordless that’s starting to lose charge. Less resistance from the bit means more consistent results from whatever tool you’re driving it with.

Where the Bosch Expert SelfCut Speed Spade Bit Earns Its Keep

This is a first-fix staple. Electricians running cables through timber frames, carpenters chasing out stud work, joiners dropping locks into door edges — 16mm is a size that comes up constantly on site. It’s large enough for most cable runs and small enough that it doesn’t weaken the timber significantly. The wave-shaped spade profile clears waste quickly, which reduces heat build-up and keeps the cut clean. Spade bits can wander on breakout if you’re not careful, but the sharp self-feeding point gives you enough control to keep things accurate.

The 1/4 inch hex shank means it drops straight into a quick-change chuck or a standard three-jaw driver without any fuss. Most modern cordless drills and drivers will take it without needing a separate adapter.

At this price point, it makes sense to keep a few in the bag rather than hunting for the one you lent out last month. These are not throwaway bits — the steel holds up well across a working day — but they’re priced so you won’t lose sleep if one goes missing on site.