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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
Simpson Strong-Tie MDMX05621 (9/16" x 21") SDS-max Shank Drill Bit for Concrete Drilling (1 Piece)Simpson Strong Tie MDMX05621 Description The SDS max Shank Drill Bit is designed for concrete drilling, featuring a durable carbide tip and a robust steel alloy body for extended service life. Simpson Strong Tie MDMX05621 Includes (1) SDS max Shank Drill Bit 9 16 in. x 21 in. Simpson Strong Tie MDMX05621 Features Uniformly brazed carbide inserts for longer bit life Centering tip for easy spot drilling Chromium nickel molybdenum steel alloy body for
Simpson Strong-Tie MDMX05621 Description
The SDS-max Shank Drill Bit is designed for concrete drilling, featuring a durable carbide tip and a robust steel alloy body for extended service life.
Simpson Strong-Tie MDMX05621 Includes
- (1) SDS-max Shank Drill Bit 9/16 in. x 21 in.
Simpson Strong-Tie MDMX05621 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
- Conforms to ANSI Standard B212.15
- Chisel-shaped drill-bit head for efficient dust removal
- Patented multi-flute spiral for improved drilling speed
- 4 x 90° head geometry for rebar penetration
Simpson Strong-Tie MDMX05621 Applications
- Concrete Drilling: Ideal for creating precise holes in concrete surfaces
- Brick and Block Applications: Suitable for masonry tasks
Simpson Strong-Tie MDMX05621 Specifications
| Diameter | 9/16" |
| Length | 21" |
| Drilling Depth | 15-1/2" |
| Head Type | 2-Cutter 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
4.6 ★★★★★
Based on 589 reviews
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Product Reviews
★★★★★ 5
Perfect for HEAVY chewers
Color: Onyx Black - Most Durable
My dog is a heavy chewer. Destroys everything that’s not very hard rubber, hard plastic, or hard material. He LOVES this ball. I think it’s his favorite. Plus, it bounces great so you can play with your dog. Very well constructed- probably indestructible or will at least last a very long time. Easily worth the money.
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Reviewed in the United States on February 7, 2026
★★★★★ 5
The only toy my dogs can’t destroy and love
Color: Onyx Black - Most Durable
I am thrilled to have found one toy my dogs don’t destroy immediately. They have torn up Fenrir hammers, the black kongs of all sizes, the monster k9 stick, nylabones, and they don’t like the goughnut at all (it stinks like a bad tire). This is the first one they both love and haven’t been able to destroy immediately. It does allow little tooth marks, but that’s what makes it fun for them. They are very happy playing with it and I’d say this one was worth every dollar.
Update Months Later: We’ve gone through 2/3 now. I got two initially, and one has lasted long term. They still haven’t completely destroyed it. They did destroy a second one quickly so I suspect a flaw in it. They sent me a new one and they took a while, but they did destroy the third to the point we had to throw it away. Despite that, one still remains and our dogs still love it. It’s still the best for the money compared to others. We have two Bully XL’s that are each close to 100 pounds.
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Reviewed in the United States on April 11, 2024
★★★★★ 5
Indestructible
Color: Onyx Black - Most Durable
This is actually indestrutible! Be careful though, it's wicked hard/heavy. It isn't a ball you want banging into things. Use outside!!
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Reviewed in the United States on April 23, 2026
★★★★★ 4
Not indestructible, but the best I’ve found
Color: Onyx Black - Most Durable, Color: Onyx Black - Most Durable
This thing is unexpectedly heavy for its size. My 18 month old Giant Schnauzer is obsessed with fetch but destroys every ball she gets. The other brands marketed for extreme chewers tend to last about a day or two before they’re totally shredded. She’s had this one for about 2 weeks and it’s looking rough, but still holding together for the most part. I appreciate that as it comes apart it does so in little pieces rather than large chunks. While it’s far from indestructible, it’s the strongest I’ve found so far.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Great product!
Color: Onyx Black - Most Durable
Great product! Quickly became my Pit Princess's favorite toy! The size, weight, and material is perfect for a big dog. Now we have fetch ball that has proven itself to be worthy!
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Reviewed in the United States on May 8, 2026
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