Klein Tools 32304 — The Only HVAC Screwdriver You Need in Your Service Bag
The Klein Tools 32304 14-in-1 HVAC Screwdriver is one of the smartest tools I carry. Instead of digging through a pouch for the right bit on every job, I grab this one tool and I have everything I need — Phillips, slotted, square, Torx, nut drivers, and two bits you won’t find on any standard multi-driver: a Schrader valve insertion bit and a core removal bit. The adjustable-length blade works standalone or drops straight into my impact driver, and the rare-earth magnet keeps bits locked in place even in awkward overhead positions. One tool, 14 functions, fits in a pocket.
Nut drivers: 1/4″ and 5/16″
Phillips bits: #0, #1, #2
Slotted bits: 1/8″, 3/16″, 1/4″
Square bit: #2
Torx bits: T10, T15
JIS bit: #2
Schrader valve insertion bit — HVAC specific
Core removal bit — HVAC specific
14-in-1 design — most common HVAC bits and nut drivers in one tool
Adjustable-length blade — short for tight spaces, extended for long reach
Impact-rated blade — use in handle or snap into any impact driver
Flip socket with 3 positions — shallow driver, deep bit holder, and nut driver
Powerful rare-earth magnet — locks bits and hex fasteners securely
Cushion-Grip handle — maximum torque and all-day comfort
All 12 bits store inside the handle — nothing to lose in the field
Overall length 9.73″ — compact enough for any service bag
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