What is the largest size bit it will take?

The largest sds bit I have been able to find is 1 3/8 (trade size 1 inch emt hole) however in doing some digging product specifications specify 5/8 inch max bit still size

How well does it work with ground rod driver

I would say very well. Used a Bosh bit. 8 foot rod going into wonderful Mizzou red clay. Took about 2 minutes. I did add a little dish soap and water out of habit.

Has anyone used this with core bits?

2.5 inch holes thru 12 inch poured concrete with # 4 bar . 3 holes 1/2 hour each and bit looked like new . Tried bits made by CO-Z worked perfect had also bought Bosch bit just in case and returned it

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DEWALT 20V MAX SDS Rotary Hammer Drill, Cordless, 3 Application Modes, Bare Tool Only (DCH273B)

Product ID: 16669471

Details

Amperage
5 Amps
Brand
DEWALT
Maximum Rotational Speed
1100 RPM
Power Source
Battery
Voltage
20 Volts

⚡20V MAX brushless power

🔨2.1 Joules impact energy

🛠️3 application modes dial

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168.50 OMR

Duties & taxes included

In stock

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Description

🔧 Drill smarter, not harder — power, precision, and comfort in one cordless hammer!

VERSATILE 3 MODE DIAL - Seamlessly switch between Drill, Hammer Drill, and Chip modes to match any task with precision.
LIGHTWEIGHT YET RUGGED - At just 6.4 lbs, this German-engineered tool balances portability with industrial-grade durability.
PRECISION IMPACT ENERGY - 2.1 Joules of impact energy powers through concrete fast, making tough drilling effortless.
VIBRATION CONTROL FOR COMFORT - SHOCKS ACTIVE VIBRATION CONTROL minimizes hand fatigue, so you stay productive longer.
CORDLESS FREEDOM MAXIMUM POWER - Experience untethered efficiency with 20V MAX brushless motor delivering peak performance on every job.

The DEWALT 20V MAX SDS Rotary Hammer Drill (DCH273B) is a lightweight, cordless powerhouse featuring a brushless motor and 2.1 Joules of impact energy for fast, efficient drilling in concrete and metal. Equipped with SHOCKS ACTIVE VIBRATION CONTROL for reduced user fatigue and a rotating dial offering 3 application modes, it’s OSHA Table 1 compliant when paired with the DWH303DH extractor. Ideal for professional-grade mounting and installation tasks, this tool combines German-engineered durability with versatile performance.

Specifications

ASIN	B00YDZI9BA
Additional Features	Brushless Motor,Lightweight,Cordless
Amperage	5 Amps
Battery Capacity	5 Amp Hours
Battery Type	20V Max
Best Sellers Rank	#10,029 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Power Rotary Hammers #5 in Power Hammer Drills
Brand Name	DEWALT
Color	Multi
Compatible Devices	DEWALT 20V MAX Batteries, DWH303DH On Board Extractor
Customer Reviews	4.7 4.7 out of 5 stars (3,384)
Drill Type	Hammer Drill
Drilling Capacity Metal	1 Inches
Drilling Capacity Wood	1 Inches
Global Trade Identification Number	00885911405102
Included Components	DCH273 Rotary Hammer \| 360° side handle \| Depth Rod \| Adjustable Hook
Item Dimensions L x W x H	13"L x 4.2"W x 8.6"H
Item Type Name	1IN 20V MAX SDS PLUS ROTARY HAMMER
Item Weight	2.7 Kilograms
Manufacturer	DEWALT
Manufacturer Part Number	DCH273B
Manufacturer Warranty Description	3 year limited warranty
Material Type	Blend
Maximum Chuck Size	20 Millimeters
Maximum Power	300 Watts
Maximum Rotational Speed	1100 RPM
Maximum Torque	1.5 Foot Pounds
Model Number	DCH273B
Number of Speeds	3
Power Source	Battery Powered
Speed	2800 RPM
Torque	1.5 Foot Pounds
UPC	885911405102
Unit Count	1.0 Count
Voltage	20 Volts

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