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222 records, red lane first.
Stop
A sound attenuator or sound trap gets soaked before install
Field problem · 4th Year
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Can black steel all-thread be used outdoors for rooftop supports?
Apprentice question · 2nd Year
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Duct Weight Calculator for Rigging
Field problem · 4th Year
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Galvanized spiral is corroding in an indoor pool area
Field problem · 4th Year
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Galvanized straps are touching copper pipe
Field problem · 4th Year
Stop
How do I avoid the whipping un-locked zip-screw hex adapter?
Apprentice question · 1st Year
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How do I avoid the whipping un-tethered impact driver drop?
Apprentice question · 1st Year
Stop
Large duct moved without enough hands/rigging
Field problem · 4th Year
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Rooftop hanger rods are rusting already
Field problem · 4th Year
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Steel fasteners are corroding an aluminum louver frame
Field problem · 4th Year
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The wrong light screws were grabbed for a structural bracket
Field problem · 4th Year
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Using unapproved fastener in rated or structural condition
Field problem · 4th Year
Stop
What's the right torque or feel for tightening bolts on a TDC/TDF connection?
Apprentice question · 1st Year
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Why can using the wrong screw size become a structural problem?
Apprentice question · 1st Year
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Why is disconnecting a live air hose dangerous?
Apprentice question · 1st Year
Check first
Forgotten sealant/hardware causes extra lift trips
Field problem · 2nd Year
Check first
How do I avoid the twisted right-angle drill shock (the wrist-snapper)?
Apprentice question · 1st Year
Check first
How do I correctly use a duct stretcher without bending the drive?
Apprentice question · 1st Year
Check first
How do I keep my tape measure from snapping and kinking on 20-foot spans?
Apprentice question · 1st Year
Check first
How do I know what size masonry bit to use for a 3/8" rod anchor?
Apprentice question · 1st Year
Check first
How do I prevent metal shavings from getting in my eyes when drilling overhead?
Apprentice question · 1st Year
Check first
Leaving tools on top of ladders or elevated surfaces where they can fall
Common mistake · 2nd Year
Check first
Level/plumb after tightening hardware not checked
Field problem · 2nd Year
Check first
Locking pliers/wide vise grips for alignment not used
Field problem · 2nd Year
Check first
Long screws through a louver casing jam the adjustable blades
Field problem · 2nd Year
Check first
Losing hardware on lift due to no pouch/bin
Field problem · 2nd Year
Check first
Material gauge before cutting/bending not checked
Field problem · 2nd Year
Check first
Missing duct stretcher/clamps for rectangular alignment
Field problem · 2nd Year
Check first
Missing impact bits/drill batteries on lift
Field problem · 2nd Year
Check first
Missing knee pads/gloves and slowing work
Field problem · 2nd Year
Check first
No spare batteries before lift work
Field problem · 2nd Year
Check first
Not attending a required safety toolbox talk because it seems repetitive
Common mistake · 2nd Year
Check first
Not checking that tools are in good working condition before use
Common mistake · 2nd Year
Check first
Not knowing red/green/yellow snip direction
Field problem · 2nd Year
Check first
Not knowing which snips to use for cut direction
Field problem · 2nd Year
Check first
Not organizing parts before lift goes up
Field problem · 2nd Year
Check first
Not returning borrowed tools to the tool crib or journeyman
Common mistake · 2nd Year
Check first
Over-tightening sheet metal screws and stripping them in 26-gauge material
Common mistake · 2nd Year
Check first
Scribe line stress-fracturing (the deep gouge)
Field problem · 2nd Year
Check first
Self-Drilling Screws: Match Point, Length, and Driver
Field problem · 2nd Year
Check first
Self-Drilling Screws: Match Point, Length, and Driver
Foreman script · 1st Year
Check first
The short-stroke snap-lock button punch miss
Field problem · 2nd Year
Check first
The single-blade crimp slip-out
Field problem · 2nd Year
Check first
The sliding notch lock-seamer slip
Field problem · 2nd Year
Check first
The spark-spotter liner drop (cold weld failure)
Field problem · 2nd Year
Check first
Tool choice creates rough, unprofessional finished install
Field problem · 2nd Year
Check first
Torque/impact setting on delicate fasteners not protected
Field problem · 2nd Year
Check first
Using a dull blade or bit and applying excessive force to compensate
Common mistake · 2nd Year
Check first
Using dull snips and mangling metal
Field problem · 2nd Year
Check first
Using hammer where duct stretcher or clamp is needed
Field problem · 2nd Year
Check first
Using tape measure hook wrong on inside dimension
Field problem · 2nd Year
Check first
Using the wrong drill bit material for the substrate (e.g., wood bit on metal)
Common mistake · 2nd Year
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What is the proper way to set a wedge anchor (drop-in) in concrete without blowing out the hole?
Apprentice question · 1st Year
Check first
What's the difference between red, green, and yellow aviation snips?
Apprentice question · 1st Year
Check first
What's the safest way to cut spiral duct with a grinder or sawzall?
Apprentice question · 1st Year
Check first
When is it required to wear cut-resistant gloves when handling raw metal edges?
Apprentice question · 1st Year
Check first
When should I use a folding tool (bar folder) versus hand seamers?
Apprentice question · 1st Year
Check first
Wrong anchor length for substrate
Field problem · 2nd Year
Check first
Wrong bit for anchor/fastener
Field problem · 2nd Year
Check first
Wrong caulk/mastic brush size for joint
Field problem · 2nd Year
Check first
Wrong driver bit and stripping screws
Field problem · 2nd Year
Check first
Wrong screw length damages liner/equipment/damper
Field problem · 2nd Year
Coordinate
Cordless Drill Battery Management
Foreman script · 1st Year
Coordinate
Drill Bit Selection for Metal vs Concrete vs Wood
Foreman script · 1st Year
Coordinate
Duct panels dented during unloading
Field problem · 3rd Year
Coordinate
Material staged by area but apprentice grabs wrong floor/zone
Field problem · 3rd Year
Coordinate
Not carrying marker/crayon/tape measure/level
Field problem · 3rd Year
Coordinate
Not marking damaged roof/floor/wall issue for responsible trade
Field problem · 3rd Year
Coordinate
Snip Color Code Meaning
Foreman script · 1st Year
Coordinate
Using damaged ladder/lift tools
Field problem · 3rd Year
Coordinate
Wrong connector pulled from material pile
Field problem · 3rd Year
Standard
Cordless Drill Battery Management
Field problem · 1st Year
Standard
Cut threaded rods will not accept nuts
Field problem · 1st Year
Standard
Drill Bit Selection for Metal vs Concrete vs Wood
Field problem · 1st Year
Standard
Duct is sent up without the bolts, clips, or drift pins
Field problem · 1st Year
Standard
Hand Seamers and Tongs: Use Without Distorting the Duct
Field problem · 1st Year
Standard
Hand Seamers and Tongs: Use Without Distorting the Duct
Foreman script · 1st Year
Standard
How do I avoid the slid-off cleat bender notch (the half-fold trap)?
Apprentice question · 1st Year
Standard
Snip Color Code Meaning
Field problem · 1st Year
Standard
Snip direction
Foreman script · 1st Year
Standard
The air hammer jams because it is dry
Field problem · 1st Year
Standard
The blown-fused cordless charger circuit
Field problem · 1st Year
Standard
The exploding polyurethane mastic bucket base
Field problem · 1st Year
Standard
The flying un-chained plasma torch ground
Field problem · 1st Year
Standard
The full-jaw apex tear (over-closing the snips)
Field problem · 1st Year
Standard
The loose bull-nose pivot drift
Field problem · 1st Year
Standard
The loose-shaft hole-saw core wobble
Field problem · 1st Year
Standard
The over-bitten pittsburgh seam (crushing the pocket)
Field problem · 1st Year
Standard
The over-reamed pipe flange fracture
Field problem · 1st Year
Standard
The pop-rivet mandrel jam (short-stroke slip)
Field problem · 1st Year
Standard
The red-snip right-hand bind (using the wrong color)
Field problem · 1st Year
Standard
The rounded-face sheet metal slant (denting the duct)
Field problem · 1st Year
Standard
The scorched air-nibbler cutting die tracker
Field problem · 1st Year
Standard
The short-jaw fold slip (wavy flange edges)
Field problem · 1st Year
Standard
The slid-off cleat bender notch (the half-fold trap)
Field problem · 1st Year
Standard
The smoking turbo-shear burnout (speed vs torque)
Field problem · 1st Year
Standard
The stripped-out damper quad nut
Field problem · 1st Year
Standard
What tool should a helper grab when the journeyman calls for common sheet metal tasks?
Apprentice question · 1st Year
Standard
Why should every duct lift include a hardware bucket?
Apprentice question · 1st Year
Standard
Why should pneumatic sheet metal tools be oiled daily?
Apprentice question · 1st Year
Reference
Adjustable wrench
Tool · 1st Year
Reference
Anchor setting tool
Tool · 1st Year
Reference
Anemometer
Tool · 1st Year
Reference
Angle grinder
Tool · 1st Year
Reference
Aviation snips - left/right/straight
Tool · 1st Year
Reference
Before You Cut
Reference · 1st Year
Reference
Before You Drill
Reference · 1st Year
Reference
Boom lift
Tool · 1st Year
Reference
Borescope / inspection camera
Tool · 1st Year
Reference
Brazing torch kit
Tool · 1st Year
Reference
Bulldog snips
Tool · 1st Year
Reference
Cart / duct dolly
Tool · 1st Year
Reference
Caulking gun
Tool · 1st Year
Reference
Chalk line
Tool · 1st Year
Reference
Clamp meter
Tool · 1st Year
Reference
Come-along / chain fall
Tool · 1st Year
Reference
Compass / dividers
Tool · 1st Year
Reference
Core removal tool
Tool · 1st Year
Reference
Crimper - 3-blade / 5-blade
Tool · 1st Year
Reference
Crimpers
Tool · 1st Year
Reference
Cut-resistant gloves
Tool · 1st Year
Reference
Diagonal cutters / wire cutters
Tool · 1st Year
Reference
Digital level / angle finder
Tool · 1st Year
Reference
Digital manifold
Tool · 1st Year
Reference
Digital thermometer
Tool · 1st Year
Reference
Draw-band tool
Tool · 1st Year
Reference
Drill/driver
Tool · 1st Year
Reference
Duct holder / temporary clamp
Tool · 1st Year
Reference
Duct jack / material lift
Tool · 1st Year
Reference
Duct knife / insulation knife
Tool · 1st Year
Reference
Duct pressurization / leakage test machine
Tool · 1st Year
Reference
Duct stretcher
Tool · 1st Year
Reference
Duct wrap knife
Tool · 1st Year
Reference
Electronic leak detector
Tool · 1st Year
Reference
Fall protection harness/lanyard
Tool · 1st Year
Reference
Fin comb / fin straightener
Tool · 1st Year
Reference
Fire-wrap knife and banding tools
Tool · 1st Year
Reference
Fire/Smoke Damper Boundary
Reference · 1st Year
Reference
Flaring tool
Tool · 1st Year
Reference
Flex duct knife
Tool · 1st Year
Reference
Flow hood / balometer
Tool · 1st Year
Reference
Folding rule
Tool · 1st Year
Reference
Folding tool
Tool · 1st Year
Reference
Grease Duct Boundary
Reference · 1st Year
Reference
Grease duct access-door template/tools
Tool · 1st Year
Reference
Hammer drill / rotary hammer
Tool · 1st Year
Reference
Hand punch
Tool · 1st Year
Reference
Hand seamer / tongs
Tool · 1st Year
Reference
Hard hat
Tool · 1st Year
Reference
Headlamp / work light
Tool · 1st Year
Reference
Hearing protection
Tool · 1st Year
Reference
Hole saw kit
Tool · 1st Year
Reference
Hot-work kit / fire blanket / extinguisher
Tool · 1st Year
Reference
Impact / turbo crimper
Tool · 1st Year
Reference
Impact driver
Tool · 1st Year
Reference
Inspection mirror / flashlight
Tool · 1st Year
Reference
Insulated screwdriver set
Tool · 1st Year
Reference
Knee pads
Tool · 1st Year
Reference
Label maker
Tool · 1st Year
Reference
Ladder
Tool · 1st Year
Reference
Laser distance measurer
Tool · 1st Year
Reference
Laser level
Tool · 1st Year
Reference
Manifold gauge set
Tool · 1st Year
Reference
Manometer
Tool · 1st Year
Reference
Mastic brush
Tool · 1st Year
Reference
Micron gauge
Tool · 1st Year
Reference
Mini brake / portable brake
Tool · 1st Year
Reference
Moving blankets / edge protection
Tool · 1st Year
Reference
Multimeter
Tool · 1st Year
Reference
Needle-nose pliers
Tool · 1st Year
Reference
Nitrogen regulator
Tool · 1st Year
Reference
Non-contact voltage tester
Tool · 1st Year
Reference
Nut drivers / magnetic hex drivers
Tool · 1st Year
Reference
Offset hand seamer
Tool · 1st Year
Reference
Offset snips
Tool · 1st Year
Reference
Paint marker / soapstone
Tool · 1st Year
Reference
Pitot tube
Tool · 1st Year
Reference
Plumb bob
Tool · 1st Year
Reference
Portable bandsaw
Tool · 1st Year
Reference
Precision/control screwdriver
Tool · 1st Year
Reference
Psychrometer
Tool · 1st Year
Reference
Putty knife / spreader
Tool · 1st Year
Reference
Rags / surface cleaner
Tool · 1st Year
Reference
Ratchet straps / tie-downs
Tool · 1st Year
Reference
Reciprocating saw
Tool · 1st Year
Reference
Recovery machine
Tool · 1st Year
Reference
Refrigerant scale
Tool · 1st Year
Reference
Respirator / dust mask
Tool · 1st Year
Reference
Rotary laser / pipe laser
Tool · 1st Year
Reference
Safety glasses
Tool · 1st Year
Reference
Scissor lift
Tool · 1st Year
Reference
Sheet metal hole cutter
Tool · 1st Year
Reference
Sheet metal notcher
Tool · 1st Year
Reference
Smoke pencil / smoke bottle
Tool · 1st Year
Reference
Socket set / ratchet
Tool · 1st Year
Reference
Sound meter
Tool · 1st Year
Reference
Speed square / framing square
Tool · 1st Year
Reference
Step bit / Unibit
Tool · 1st Year
Reference
Swaging tool
Tool · 1st Year
Reference
Tachometer
Tool · 1st Year
Reference
Tag line / rope
Tool · 1st Year
Reference
Tap and die set / thread-chasing dies
Tool · 1st Year
Reference
Tape measure
Tool · 1st Year
Reference
Tape roller / squeegee
Tool · 1st Year
Reference
Temperature clamp
Tool · 1st Year
Reference
Threaded rod cutter
Tool · 1st Year
Reference
Tongue-and-groove / channel-lock pliers
Tool · 1st Year
Reference
Tool tether connector / locking carabiner
Tool · 1st Year
Reference
Torpedo level
Tool · 1st Year
Reference
Torque wrench
Tool · 1st Year
Reference
Tube cutter
Tool · 1st Year
Reference
Tubing bender
Tool · 1st Year
Reference
Tubing reamer / deburring tool
Tool · 1st Year
Reference
UL-rated foil tape
Tool · 1st Year
Reference
Unistrut cutter / bandsaw
Tool · 1st Year
Reference
Utility knife
Tool · 1st Year
Reference
Vacuum pump
Tool · 1st Year
Reference
Vapor barrier tape roller
Tool · 1st Year
Reference
Welding tools
Tool · 1st Year
Reference
Wire strippers
Tool · 1st Year
Reference
Wrench set
Tool · 1st Year
Reference
Zip-tie tension tool
Tool · 1st Year