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Hercules 20V Brushless 1/4 in. Hex Impact Driver (Tool Only) vs Hercules 20V Brushless 7-1/4 in. Circular Saw (Tool Only)

These are different tools, not substitutes: the impact driver drives screws and lag bolts, the circular saw cuts lumber. Buy the driver if your work is fastening, framing with screws, or decking; buy the saw if you are cutting sheet goods, studs, or trim. Both are Hercules 20V brushless tool-only units, so they share the same battery platform and neither includes a battery or charger. Check the current price at each store before you commit, since tool-only pricing moves.

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Hercules
Hercules 20V Brushless 1/4 in. Hex Impact Driver (Tool Only)

Hercules 20V Brushless 1/4 in. Hex Impact Driver (Tool Only)

Choose the Hercules 20V Brushless 1/4 in. Hex Impact Driver if you mostly fasten: it delivers 84 ft-lb of torque for driving screws, lag bolts, and deck boards, and its compact hex drive fits standard 1/4 in. bits.

Pros
  • 84 ft-lb of torque handles lag bolts and long deck screws
1/4 in. hex drive takes common impact bits with no chuck key
  • Brushless motor for longer runtime per charge
  • Compact and light compared with a circular saw
    • Cons
    • Tool only: no battery or charger included
    • Cannot cut lumber or sheet goods
    • Hex drive is not suited to drilling holes without an adapter
    Hercules
    Hercules 20V Brushless 7-1/4 in. Circular Saw (Tool Only)

    Hercules 20V Brushless 7-1/4 in. Circular Saw (Tool Only)

    Choose the Hercules 20V Brushless 7-1/4 in. Circular Saw if you mostly cut: a 7-1/4 in. blade at 5,000 RPM cuts 2-1/2 in. deep at 90° and 1-7/8 in. at 45°, with bevels from 0 to 50°.

    Pros
    • 7-1/4 in. blade cuts 2-1/2 in. deep at 90°, enough for 2x lumber
    • Bevels 0 to 50° for angled cuts
    • 5,000 RPM brushless motor for fast crosscuts
    • Shares the Hercules 20V battery platform with the driver
    Cons
    • Tool only: no battery or charger included
    • 7.4 lb is heavy for overhead or one-handed work
    • Cannot drive fasteners
    • Needs a 5/8 in. arbor blade, sold separately

    What separates them

    Hercules 20V Brushless 1/4 in. Hex Impact Driver (Tool Only)Hercules 20V Brushless 7-1/4 in. Circular Saw (Tool Only)
    Primary jobDriving screws, bolts, and fastenersCutting wood, sheet goods, and trim
    Power spec84 ft-lb maximum torque5,000 RPM blade speed
    Size and weightCompact handheld driver7.4 lb, 13-1/8 in. long, 11 in. tall
    Cut capacityNot a cutting tool2-1/2 in. at 90°, 1-7/8 in. at 45°
    Bevel capabilityNone0 to 50° bevel
    Blade or bit interface1/4 in. hex drive7-1/4 in. blade, 5/8 in. arbor
    Battery platformHercules 20V lithium-ion, tool onlyHercules 20V lithium-ion, tool only
    In the boxTool only, no battery or chargerTool only, no battery or charger

    Price history

    • Hercules 20V Brushless 1/4 in. Hex Impact Driver (Tool Only): lowest $68.99 on Oct 31 at Amazon.
    • Hercules 20V Brushless 7-1/4 in. Circular Saw (Tool Only): lowest $99.99 on Oct 31 at Harbor Freight Tools.

    Prices at every store

    Hercules 20V Brushless 1/4 in. Hex Impact Driver (Tool Only)

    • AmazonCheck price at Amazon
    • eBayCheck price at eBay
    Prices and history →

    Hercules 20V Brushless 7-1/4 in. Circular Saw (Tool Only)

    • Harbor Freight ToolsCheck price at Harbor Freight Tools
    Prices and history →

    Specs compared

    SpecHercules 20V Brushless 1/4 in. Hex Impact Driver (Tool Only)Hercules 20V Brushless 7-1/4 in. Circular Saw (Tool Only)
    Battery TypeLithium-ionLithium-ion
    Power TypeCordless—
    ColorBlack—
    Maximum Torque84 ft-lb—
    Chuck / Drive Size1/4 inch chuck / drive—
    Voltage20 volts—
    Blade Diameter—7 1/4 inch blade
    Blade size—7-1/4 in.
    Arbor size—5/8 in.
    Battery voltage—20
    Battery included—No
    Max speed—5000 RPM
    Show all 18 specsShow fewer specs
    SpecHercules 20V Brushless 1/4 in. Hex Impact Driver (Tool Only)Hercules 20V Brushless 7-1/4 in. Circular Saw (Tool Only)
    Depth of cut at 90°—2-1/2 in.
    Max cut depth at 45°—1-7/8 in.
    Bevel angle—0 to 50°
    Product weight—7.4 lb.
    Product height—11 in.
    Product length—13-1/8 in.

    What reviewers say

    Hercules 20V Brushless 7-1/4 in. Circular Saw (Tool Only)

    Owner feedback on the Hercules 20V brushless saw is generally positive on power and value for the price, with the main complaints about battery platform lock-in and the bare-tool packaging.

    Pros
    • Strong power for the price
    • Cuts 2x lumber cleanly at full depth
    • Light enough for overhead and one-handed work
    Cons
    • Battery and charger cost extra
    • Hercules battery availability is limited
    • Fit and finish below premium brands

    Questions and answers

    Which is better for building a deck?
    You need both. The circular saw cuts the boards and the impact driver drives the deck screws. If you can only buy one now, start with the driver, since deck screws are the slow part.
    Do they use the same battery?
    Yes. Both are Hercules 20V lithium-ion tool-only units, so one Hercules 20V battery fits either tool. Neither includes a battery or charger.
    Which lasts longer?
    Both are brushless, which extends motor life versus brushed tools. The saw wears blades and the driver wears bits; the tools themselves should hold up similarly under normal use.
    Can the impact driver cut wood?
    No. It has no blade and only 1/4 in. hex drive. Use the circular saw for cutting and the driver for fastening.
    Is the circular saw worth it over a smaller one?
    A 7-1/4 in. blade cuts 2-1/2 in. deep at 90°, so it handles 2x material in one pass. A smaller saw cannot. If you cut mostly plywood and trim, a compact saw may be enough.
    What else do I need to run either tool?
    A Hercules 20V battery and charger, sold separately. The saw also needs a 7-1/4 in. blade with a 5/8 in. arbor; the driver needs 1/4 in. hex bits.

    More comparisons

    • Hercules 20V Brushless 1/4 in. Hex Impact Driver (Tool Only) vs Hercules 20V Brushless 1/2 in. Drill Driver (Tool Only)
    • Hercules 20V Brushless 7-1/4 in. Circular Saw (Tool Only) vs Hercules 20V Brushless 1/2 in. Drill Driver (Tool Only)