Type of drill bit needed

You need an SDS bit (that’s how it connects to the masonry drill).

I need to drill 1/2 inch holes in granite rocks maybe 4-5 inches deep, will this do the job or do I need a bigger unit ?

Yes this should handle that, I use it to drill 1/2 holes six inches deep in concrete regularly so granite should be fine. Remember the bits are SDS slotted drill system no chuck key required also a bonus.

Can it hammer only with out rotating?

No. 2 modes only. 1. Drill 2. Hammer Drill

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⚡ Drill smarter, not harder — the future of cordless rotary hammers is here!

VERSATILE PRO TOOL - Ideal for rod hanging, cable trays, clips, brackets, and railing installations
BRUSHLESS BRILLIANCE - Advanced brushless motor paired with durable German mechanism for peak efficiency
FEATHERWEIGHT CHAMPION - Lightweight 2.09 kg design perfect for all-day use without fatigue
POWER PACKED PRECISION - 1.4 joules of impact energy for rapid concrete drilling
VIBRATION FREE VICTORY - Active Shock Vibration Control reduces user fatigue and enhances control

The Dewalt DCH172B 20V MAX ATOMIC is a compact, cordless rotary hammer featuring a powerful brushless motor and 1.4 joules of impact energy. Weighing just 2.09 kg, it offers superior portability and reduced user fatigue thanks to its Active Shock Vibration Control system. Designed for professional-grade tasks like concrete drilling, rod hanging, and bracket mounting, this tool delivers efficient, vibration-minimized performance for demanding job sites. Battery and charger sold separately.

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TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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I loved the variety of products available. Will definitely shop again.

2 months ago

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Brand	DEWALT(デウォルト)
Model Number	DCH172B
Product Dimensions	28.83 x 21.7 x 27.11 cm; 2.09 kg
Color	lemon tree
Name List for Name Plates	Classic
Material	Combination
Wallpaper Pattern	Solid
Power Source	Battery Powered
Voltage	20
Laser Class	Brush, Compact, Cordless, Lightweight
Included Components	Drill Attachment
Are Batteries Included	No
Battery Type	Lithium Ion
Maximum Rotational Speed	1100 RPM
Item Weight	2.09 Kilograms

Dewalt DCH172B 20V MAX ATOMIC Brushless Lithium-Ion 5/8 in. Cordless SDS PLUS Rotary Hammer (Tool Only)

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