THE TAKEAWAY
The Simplest Tools Cause Some of the Most Preventable Injuries
A hammer is the first tool most of us ever pick up, which is exactly why it's easy to get careless with one. Striking tools don't have guards, blades, or motors to remind you they're dangerous — just momentum, a target, and whatever's in the way if you miss. Here's what Gerber crews follow every time they pick one up.
SAFETY STANDARD
What Counts as a Striking Tool?
Striking tools are anything used to deliver an impact — hammers, mauls, and sledges — along with the struck tools they drive: cold chisels, hot chisels, wood chisels, brick chisels, punches, drift pins, wedges, and rock or star drills. OSHA addresses their safe use directly under 29 CFR 1926.301.
The rule that covers all of them is the same one: never use a striking tool for anything other than the job it was built for, and never swing one with a loose or damaged handle, a mushroomed head, or a dull cutting edge.
HOW IT WORKS
The Rules Behind Every Swing
Strike Squarely
A glancing blow is how fingers and hands get hit — and how hammer heads chip. Line it up before you swing.
Never Strike With the Side
The face is built to take the impact. The side isn't, and using it invites the head to crack or shatter.
Never Strike Another Hammer
Hammer heads are hardened steel — striking one against another can chip both and send fragments flying.
Match the Hammer to the Tool
When striking a chisel, punch, or wedge, the hammer face should always be larger than the head of the struck tool.
THE CHALLENGE
Why a "Little Wear" Isn't Little
Every time a hammer strikes a chisel or punch, the struck end gradually rolls outward into a "mushroom" shape. That rolled-over edge is brittle, and under impact it can chip and send metal fragments flying at high speed.
A hammer head that's worked loose on its handle carries the same risk in a different form — it can separate from the handle mid-swing, with the head going wherever momentum sends it.
Neither failure gives a warning first. That's why a quick look before every use isn't optional — it's the whole point.
WHY IT MATTERS
The Stakes Are Real
8% of All Workplace Injuries
OSHA estimates hand tools are behind roughly 8% of all workplace compensable injuries nationwide — and hammers and struck tools are among the most common.
100,000+ Hand Tool Injuries a Year
BLS data shows over 100,000 reported work injuries involving hand tools annually — and most trace back to a small handful of preventable defects.
Eye Injuries, First and Fastest
Flying metal fragments from mushroomed heads are a leading cause of eye injuries on struck-tool jobs. Goggles aren't a formality — they're the last line of defense.
BEFORE YOU SWING
Check It Before You Use It
Inspecting a striking tool takes ten seconds. It's the ten seconds that keeps a normal task from becoming an incident report.
Put it down and grab another if:
- ▸ The handle is loose or damaged: Any wobble at the head means the tool isn't safe to swing
- ▸ The head is mushroomed or chipped: Dressed and sharpened is fine. Rolled-over and cracked is not
- ▸ The cutting edge is dull: A dull chisel or drill takes more force to do the same job — and more force means more risk if it slips
- ▸ It's the wrong tool for the material: Cold chisels on stone, wood chisels on metal, brick sets on anything but masonry — matching the tool to the job matters as much as the tool's condition
- ▸ You don't have your goggles on: Every time, no exceptions, regardless of how quick the job seems
KNOW YOUR TOOL
Match the Tool to the Material
Hammers
Built to strike squarely with the face. Never used to strike another hammer, and never used sideways.
Struck Tools
Cold chisels, hot chisels, wood chisels, brick chisels, punches, drift pins, and wedges. Each is built for a specific material — cold chisels aren't for stone, wood chisels aren't for metal.
Rock & Star Drills
Built for masonry only. A dull cutting edge or damaged head takes them out of service until they're dressed.
Axes & Hatchets
Meant to strike wood. Never used against metal, stone, or concrete. The striking face can drive common nails, but not cold chisels or rock drills.
BUILT INTO EVERY CREW
The Gerber Approach to Striking Tools
Toolbox Tips with Kitt is how we keep safety practical, not theoretical. Each week, Kitt walks the crew through one real habit from site training — the kind of reminder that takes thirty seconds to hear and can prevent a lifetime of consequences.
Every Gerber crew member checks a striking tool before they use it — handle, head, and edge — and reaches for the right tool for the material in front of them. Goggles come on before the first swing, not after the first spark.
It's a simple standard: if it's worn, mismatched, or missing its guard, it doesn't get used until it's fixed.
Kitt JarzabkowskiProject Manager, Gerber Construction
SAFETY-FIRST CREWS
Want to Work Somewhere Safety Isn't Just a Poster?
Every Gerber crew trains on habits like this one — practical, weekly, and enforced without exception. That's what it takes to make sure everyone goes home safe, every day.
