Klein Tools 85191 Conduit Reamer Screwdriver - Rugged Reaming Tool

In this review of the Klein Tools 85191 Conduit Reamer Screwdriver the bottom line is clear: this is a practical, professional-grade hand tool for electricians who need a dependable dual-function driver that both tightens fittings and cleans conduit ends. The biggest reason to buy is its hooded-blade and reaming head combination, which prevents tip cam-out when working in tight spaces while also reaming and smoothing 1/2 in, 3/4 in and 1 in thin-wall conduit for safer wire pulls. Overall it reads like a tradesperson's tool rather than a casual household screwdriver.

Key Features

• Hooded-blade: The hooded tip keeps the screwdriver from slipping out of screws, which is especially useful when tightening hard-to-reach conduit fittings.
• Reamer sizes: Built-in reaming surfaces handle 1/2 in (13 mm), 3/4 in (19 mm) and 1 in (25 mm) thin-wall conduit to smooth edges and protect conductors.
• Cushion-Grip handle: The long cushioned handle increases comfort and provides additional torque when breaking burrs or turning tight fittings.
• Replacement blade: The blade is retained with a 1/16-in hex socket set screw so the tip can be serviced without replacing the whole tool.
• EMT compatibility: Designed specifically for Electrical Metallic Tubing, this tool integrates driver and reamer tasks to reduce trips to the pouch.
• Made in USA: Crafted domestically for durability and consistent build quality expected by professionals.

Who It's For

The Klein 85191 is aimed primarily at commercial electricians, electrical contractors and serious DIYers who frequently work with EMT. If you do lots of conduit runs and need a single, reliable tool to both seat fittings and deburr ends, this reaming screwdriver will save time and pocket space.

Those who should look elsewhere include users who only occasionally work with conduit and prefer separate precision reamers or drivers, or anyone requiring insulated screwdrivers for live-circuit work, since this tool is optimized for mechanical reaming and fitting rather than live electrical protection.

Pros & Cons

Pros

• Durable hooded blade that reduces tip slippage and improves access to recessed fittings.
• Multi-size reamer handles common thin-wall conduit diameters for cleaner, safer wire pulls.
• Comfortable long Cushion-Grip handle that adds torque and reduces hand fatigue during extended use.
• Made in USA quality and a replaceable blade secured by a 1/16-in hex set screw.

Cons

• Not insulated for live electrical work, so it is not a substitute for insulated screwdrivers.
• Combination design means it is bulkier than a simple stub reamer for those who only need the reaming function.

Specifications

Brand	Klein Tools
Model	85191
Reams	1/2 in, 3/4 in, 1 in thin-wall conduit
Blade style	Hooded-blade with set screw retention (1/16 in hex)
Handle	Long Cushion-Grip for comfort and torque
Compatibility	Designed for Electrical Metallic Tubing (EMT)
Country of origin	Made in USA

Our Verdict

The Klein Tools 85191 Conduit Reamer Screwdriver is a solid choice for tradespeople who need a reliable, two-in-one tool that reduces trips to the tool belt while producing clean conduit ends. Its hooded blade and cushioned handle make it practical on long runs and in tight spaces, and the replaceable blade plus American construction add value for frequent professional use.

Frequently Asked Questions

Can this tool ream multiple conduit sizes?
The built-in reamer surfaces are designed to ream and smooth 1/2 in, 3/4 in and 1 in thin-wall conduit.

Is the screwdriver insulated for electrical work?
No, this tool is not insulated for live-circuit protection; it is intended for mechanical fitting and reaming on EMT.

Can the blade be replaced if damaged?
Yes, the blade is held by a 1/16-in hex socket set screw to allow replacement without discarding the handle.