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findmall 1 Pair Accuracy 2-4-6 Blocks 23 Holes Matched .0003" Machinist 246 Block

  • Based on 573 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sep 25 – Sep 26
Order within 15 hours and 35 minutes
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Size: 2" x 4" x 6"


Number of Items: 1


Features

  • Made of accuracy-grade tool steel hardened and ground on all 6 sides of block
  • Heat treated and case hardened to HRC 57-62
  • Accuracy and squareness on all sides within .0003"
  • Dimensions: 2"x 4"x 6". 23 each 3/8 inch through holes (5 tapped with 3/8-16 threads and 18 untapped)
  • Cross drilling design allows for efficient use of lower weight with maximum strength

Description

Flatness and parallelism are within .0003" Squareness on all sides to within 0.0003" Pairs are matched to a tolerance of 0.0002" The cross drilling design can be used efficiently of lower weight with maximum strength. The blocks are made from accuracy grade tool steel hardened and ground on all 6 sides of block, heat treated and case hardened to HRC 57-62 23 each 3/8 inch through holes (5 tapped with 3/8-16 threads and 18 untapped) Findmall focuses on the field of industrial products and is committed to becoming the top professional industrial tools supplier. Made of high-quality material and refined through strict processing and testing, our products stand out with high precision and durable performance. Over the years, we have provided millions of customers with both high-quality household and industrial manufacturing tools. In Findmall, you can FIND MORE TOOLS you need. Findmall is as serious about industrial tools as you are. We specialize in producing the high precision household and industrial manufacturing tools so that each consumer can enjoy the convenience through technology. We have the most comprehensive product portfolio and knowledgeable staff, and our professional production technology is ahead of other industry sellers. We can provide convenience to customers worldwide with high-quality household and industrial manufacturing tools. The good products for your professional skills even better The high-quality tools will help you increase your productivity The high precision tool ensure it's work integrity and eliminate rework With durable performance, long-term usage

Package Dimensions: ‎8.7 x 6.46 x 2.24 inches


Item Weight: ‎18.3 pounds


Manufacturer: ‎findmall


Item model number: ‎findmall


Date First Available: ‎September 9, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 25 – Sep 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • 123 blocks doing 123 stuff
Size: 1" x 2" x 3" Number of Items: 5
Work great although my use case is just a tad off-label. They make great custom stands. Can be 1", 2" or 3" tall. Using the 3" configuration here with my old b&w 803s. Old machinist here repurposing fixture parts
Reviewed in the United States on June 22, 2026 by fosh

  • Good for building models
Size: 1" x 2" x 3" Number of Items: 1
I’m using them to help me square off angles and hold things in place as I build models. I had to give them a thorough washing first, since that’s not what they’re designed for, but with all the grease cleaned off, they’re the perfect thing.
Reviewed in the United States on January 7, 2026 by Denice L Hurlbut

  • Quality blocks.
Size: 2" x 4" x 6" Number of Items: 1
I measured these on a granite surface plate using a height stand with a .0001” indicator attached, all calibrated equipment. All sides measured parallel within +/- .0001. Flatness was virtually perfect on the matched pair. Others have mentioned the countersinks are pretty rough on their surface finish and I agree. However, all threads and faces are burr-free and function correctly. Purely aesthetic, but considering the price I can’t complain. ... show more
Reviewed in the United States on August 13, 2023 by Aaron

  • Decent quality for home shop use
Size: 1" x 2" x 3" Number of Items: 1
Blocks appear to be accurate enough for my use at a low cost.
Reviewed in the United States on January 4, 2025 by Thomas A. Bell

  • holes filled with metal crud
Size: 2" x 3" x 4" Number of Items: 1
spent about 30 minutes getting crud and metal shavings out of the holes. Otherwise they are pretty solid appearing. update: got some of the greasey crud on my shorts. There is a lot more crud in the holes than I originally noticed. second update: spent a good amount of time cleaning them up, and they are great. I was curious and looked at prices on other 234 blocks, and realized these are only cheap cause they don't clean them up for you. ... show more
Reviewed in the United States on August 11, 2023 by justin

  • Good quality.
Size: 1" x 2" x 3" Number of Items: 1
They perform as described. If you have never used these tools then you would not understand that they are like having multiple “other hands” lol. I will recommend these to anyone getting into somewhat precision metal working. These things are spot on with respect to dimension and thread sizes. Good buy. ... show more
Reviewed in the United States on April 7, 2024 by George

  • Great beater set
Size: 1" x 2" x 3" Number of Items: 5
Bought these for a beater set. They work great for general set up. These are by no means ultra precise tool and die grade blocks, but they are excellent for general shop use. They all passed a caliper check, but don't expect a lab grade product.
Reviewed in the United States on February 5, 2025 by Caleb

  • Dimensionally correct
Size: 2" x 3" x 4" Number of Items: 1
Solid 2-3-4 blocks that measured dimensionally correct to .001" across all sides using a set of Mitutoyo 6" calipers. Came packed in enough preservative to survive several decades in a warehouse. No way they were rusting anytime soon.
Reviewed in the United States on March 1, 2025 by CK

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