Corona AS 90300 All-Steel Round-Point Shovel
A round-point shovel is useful when the planting hole needs a broad opening.
Read our take
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Manual Post-Hole DiggersOUR TAKE
Corona PD 40020 Atlas Post-Hole Digger
A manual Atlas-pattern post-hole digger with steel heads and 48-inch fiberglass handles.
Choose this model for occasional fence, mailbox and sign-post holes where a manual clamshell tool suits the soil.
- Good for
- Occasional fence, mailbox and sign-post holes where a manual clamshell tool suits the soil.
- Look elsewhere if
- You are installing a long fence line or digging through severe rocky ground.
- The tradeoff
- It removes soil from a narrow hole by repeated manual lifting.
At a glance
- Power source
- Manual
- Material
- Steel
- Handle style
- Long handle
- Handle Material
- fiberglass
Why it earns a look
- Opposing heads remove soil from a narrow opening.
- Handle markings provide a convenient depth reference.
Where it asks for a compromise
- A deep hole still demands repeated lifting and room to spread the handles.
Plan the hole before the first scoop
The clamshell format is useful when a shovel cannot easily lift soil from a narrow opening. Check the footing width and depth first, then keep the spoil pile away from the rim. Roots, stone and hard layers can change the amount of work substantially.
Living with it in the garden
Keep the hinge area clear of packed soil.
Check the heads and handle connections before each job.
Which one belongs in your shed?
Corona AS 90310 All-Steel Caprock Shovel
The flat-bowl Caprock shovel offers a different digging shape for open soil work.
Read our takeYour PD 40020 questions
Are the handles fiberglass?
Yes. Corona specifies 48-inch fiberglass handles.
Does it dig automatically?
No. This is a manual post-hole digger that closes around loosened soil for lifting.
Full specifications, manuals & sources
Model details
- Full model name
- Corona PD 40020 Atlas Post-Hole Digger
- Amazon ASIN
- B002SZ0TR4
- Handle style
- Long handle
- Handle Material
- fiberglass
- Material
- Steel
- Power source
- Manual
- Brand
- Corona
Manuals & product information
Photo sources
Product information checked 2026-10-29. Our assessment uses the linked specifications and manuals; it does not represent a hands-on test. Editorial standards & corrections.