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Description
Simpson Strong-Tie MDMX08721Q (7/8" x 21") SDS-max Shank Quad-Head Drill Bit for Concrete Drilling (1 Piece)Simpson Strong Tie MDMX08721Q Description The SDS max Shank Quad Head Drill Bit is designed for efficient concrete drilling, featuring a durable carbide tip and a quad head design for enhanced performance. Simpson Strong Tie MDMX08721Q Includes (1) SDS max Shank Quad Head Drill Bit Simpson Strong Tie MDMX08721Q Features Uniformly brazed carbide inserts for longer bit life Centering tip for easy spot drilling Chromium nickel molybdenum steel alloy body
Simpson Strong-Tie MDMX08721Q Description
The SDS-max Shank Quad-Head Drill Bit is designed for efficient concrete drilling, featuring a durable carbide tip and a quad-head design for enhanced performance.
Simpson Strong-Tie MDMX08721Q Includes
- (1) SDS-max Shank Quad-Head Drill Bit
Simpson Strong-Tie MDMX08721Q Features
- Uniformly brazed carbide inserts for longer bit life
- Centering tip for easy spot drilling
- Chromium-nickel-molybdenum steel alloy body for durability
- Heat-treated and shot-peened finish for increased hardness and reduced wear
- Conforms to ANSI Standard B212.15
- Chisel-shaped head for effective material penetration
- Patented multi-flute spiral for improved drilling speed
- 4 x 90° head geometry for rebar penetration
Simpson Strong-Tie MDMX08721Q Applications
- Concrete drilling in construction and masonry projects
- Effective for use in reinforced concrete with rebar
Simpson Strong-Tie MDMX08721Q Specifications
| Diameter | 7/8" |
| Length | 21" |
| Drilling Depth | 17" |
| Head Type | Quad Head |
| Shank Style | SDS-max |
| Material | Hardened Steel |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.0 ★★★★★
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Product Reviews
★★★★★ 5
Very nice sheepskin .
Size: 2' x 6' (Sheepskin Pelt Patchwork), Color: Wolf Tipped
This rug is very gorgeous , nice soft and plush. The wool is upright and even and you just want to keep touching it. It had some odor at first which is now dissipating the longer it is aired. Well worth the price. However I ordered two different colors at the same time. This is the one that I received first and am still waiting for the second one in light brown . For some reason the other was stalled somewhere in Kentucky as of this morning and upon communication a replacement was ordered by Amazon. I'm very happy with this one , just wish the frustration hadn't arisen over the shipping for other and will update or rate after I receive that one.
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Beautiful in a window seat
Size: 2' x 6' (Sheepskin Pelt Patchwork), Color: Ivory White, Size: 2' x 6' (Sheepskin Pelt Patchwork), Color: Ivory White
This is soft, pure white, and of decent quality for my purposes. I saw a photo of one used in a window seat so that's where mine is white 3 lumbar pillows on the sides and back of the seat. The size is perfect. It's a little bigger than my seat so I could use the tape to pin one side to each wall and also over the seat. I guess it all depends on what you are using it for to determine if you'll like it. I have a large sheepskin rug in another room. This one in my opinion is too skinny to be used as a rug. I haven't detected a smell at all.
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Reviewed in the United States on December 24, 2025
★★★★★ 5
Soft to the touch
Size: 2' x 6' (Sheepskin Pelt Patchwork), Color: Black
Soft to the touch and well made. Love it!
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Reviewed in the United States on May 28, 2026
★★★★★ 5
It's real!
Size: 2' x 3' (Sheepskin Pelt Patchwork), Color: Ivory White
Off white but totally happy. Even though it's wool, it doesn't itch and is very soft. The patches are few and not at all noticeable from front. Very thick and looks great!
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Reviewed in the United States on May 26, 2026
★★★★★ 4
Nice and fluffy, the color is a bit lighter
Size: 2' x 6' (Sheepskin Pelt Patchwork), Color: Light Brown
Pretty and fluffy. Wishing the color were a bit darker so it matched my decor better. It’s hard to tell what color you’ll actually get 🫤 Not ideal but doable.
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Reviewed in the United States on May 10, 2026