SKU: 84012750097

Simpson Strong-Tie MDMX06821Q 11/16-in. x 21-in. SDS-max Shank Quad-Head Drill Bit

$78.29 $86.99
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Shipping Estimate
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  • USA
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Ships within 48 hours · Estimated delivery Oct 15 - Oct 20

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Description

Simpson Strong-Tie MDMX06821Q 11/16-in. x 21-in. SDS-max Shank Quad-Head Drill BitUniformly brazed carbide inserts resulting in longer bit life Self centering tips for accurate hole placement Chromium nickel molybdenum steel alloy body ensures hammering quality and extended service life Heat treatment procedures and shot peened finish increase surface hardness, drilling speed, reduces drill bit wear and improves resistance to bending forces Drill bit conforms to ANSI Standard B212. 15 High volume, multi flute spiral quickly

Simpson Strong-Tie MDMX06821Q 11/16-in. x 21-in. SDS-max Shank Quad-Head Drill Bit
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 84012750097

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4.7 ★★★★★
Based on 1798 reviews
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Product Reviews
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Verified Purchase
Chilipep
Massapequa, US
★★★★★ 5
Dust bags for robovac
Color: 14Pcs Eufy E25/E28/C28 Bags
These dust bags are great for my robovac. I'm glad Amazon carries them. If you've got a robovac this is the place to get them! Great quality!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
J
Verified Purchase
Jomar Martinez
Charlottesville, US
★★★★★ 5
A+
Color: 14Pcs Eufy E25/E28/C28 Bags
A+
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
R
Verified Purchase
REALiZEx
Grantham, US
★★★★★ 5
Work just like the originals
Color: 14Pcs Eufy E25/E28/C28 Bags
Work just like the originals. Will buy again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 4, 2025
C
Verified Purchase
Chris H
Louisville, US
★★★★★ 5
It fits
Color: 14Pcs Eufy E25/E28/C28 Bags
Fits my eufy 25 perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 21, 2025
J
Verified Purchase
joseph torres
Belleville, US
★★★★★ 5
Precise fit
Size: Eufy E25 Omni / E28 Omni E28
Perfect fit for eufy E28 system Follow instructions and you will be a happy camper.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026

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