Harbor Freight prices › Power Tools › Grinders
HERCULESitem 57486
4 in. to 5 in. Surface Grinding Dust Shroud
Base price$39.99
Members' price$39.99
Everyone else$39.99
Benton Harbor, MI shelf$39.99same shelf price as online
$39.99 is the top price this item has hit, and it has dipped to $24.99 to $32.99 three times in the past year.
Put the drill down. It's had 9 sales since Jun 2022 that would beat today's price, usually 15% off ($32.99). More often lately: 5 in the past year. From spots like today's, one came within six weeks about 7 times in 10.
In-store only. You can't order this one online.
Why it's Wait
Today's $39.99 is the highest regular price in the record, up from $34.99 a year ago. Coupons or sales beat it in Sep 2025 ($24.99), Dec 2025 ($29.99), Apr 2026 ($32.99) and May 2026 ($24.99), and the record's odds put a better price within six weeks at about 41%, with sales getting more frequent lately. It's been 145 days since the last dip, nothing is announced, and the record shows only one Dec sale, so a holiday drop is a hint, not a pattern.
Next sale, maybe: Early December, around $30.
Written by AI from this item's price record and coupons. The prices on this page are the record itself.
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The numbers
- Today
- $39.99
- Usual price
- $39.99
- 90-day low
- $33.99
- Lowest tracked
- $19.99
- Dewalt equivalent
- $99.99
- Today, members
- $39.99
- Usual for members
- $39.99
- 90-day low
- $33.99
- Lowest tracked
- $14.99
- Dewalt equivalent
- $99.99
May 22, 2024
Jul 28, 2024
Prices by store
Harbor Freight prices some items differently by store, and once you pick a store its site shows that store's shelf price. These come from contributors who share their store; the main price above is the base price, the one HF shows before you pick a store.
| Store | Today | Usually |
|---|---|---|
| Benton Harbor, MI store 583, checked Oct 20, 2026 | $39.99 | $39.99 |
Price history
Best price for anyoneInside Track Club priceRegular price
Every price change
| When | Price | Members | Why |
|---|---|---|---|
| Nov 2, 2026 to Nov 5, 20264 days, checked 0x | $39.99 | Regular price | |
| Oct 30, 2026 to Nov 1, 20263 days, checked 0x | $33.9915% off | 15% off any single item (one item a day) | |
| Oct 29, 20261 day, checked 1x | $39.99 | $33.99 | Regular price |
| Jun 9, 2026 to Oct 28, 2026142 days, checked 2x | $39.99 | Regular price | |
| May 26, 2026 to Jun 8, 202614 days, checked 0x | $24.9938% off | Coupon | |
| Apr 28, 2026 to May 25, 202628 days, checked 0x | $39.99 | Regular price | |
| Apr 14, 2026 to Apr 27, 202614 days, checked 0x | $32.9918% off | Coupon | |
| Feb 27, 2026 to Apr 13, 202646 days, checked 0x | $39.99 | Regular price | |
| Feb 18, 2026 to Feb 26, 20269 days, checked 1x | $39.99 | $29.99 | Regular price |
| Jan 30, 2026 to Feb 17, 202619 days, checked 0x | $34.99 | $29.99 | Regular price |
| Jan 16, 2026 to Jan 29, 202614 days, checked 1x | $34.99 | Regular price | |
| Dec 2, 2025 to Jan 15, 202645 days, checked 1x | $29.9914% off | Sale price | |
| Sep 15, 2025 to Dec 1, 202578 days, checked 0x | $34.99 | Regular price | |
| Sep 1, 2025 to Sep 14, 202514 days, checked 0x | $24.9929% off | Coupon | |
| Jul 29, 2024 to Aug 31, 2025399 days, checked 0x | $34.99 | Regular price | |
| Jul 14, 2024 to Jul 28, 202415 days, checked 1x | $34.99 | $14.99 | Regular price |
| Jul 1, 2024 to Jul 13, 202413 days, checked 0x | $29.99 | $14.99 | Regular price |
| May 23, 2024 to Jun 30, 202439 days, checked 0x | $29.99 | Regular price | |
| May 9, 2024 to May 22, 202414 days, checked 0x | $19.9933% off | Coupon | |
| Mar 25, 2023 to May 8, 2024411 days, checked 0x | $29.99 | Regular price | |
| Feb 25, 2023 to Mar 24, 202328 days, checked 0x | $29.99 | $19.99 | Regular price |
| Jul 16, 2022 to Feb 24, 2023224 days, checked 1x | $29.99 | Regular price | |
| Jun 5, 2022 to Jul 15, 202241 days, checked 1x | $24.99 | Regular price |
Tracking since Oct 20, 2026. Last checked Oct 29, 2026.