Right Angle Gear Speed Reducer 143T 20:1 Size 70 (Right Output) | TUM7020-R

Right Angle Gear Speed Reducer 143T 20:1 Size 70 (Right Output) | TUM7020-R

Marsoni

M251S

$328.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Right Angle Gear Speed Reducer 143T 20:1 Size 70 (Right Output) | TUM7020-RDimensions PDF Product Details : Right Angle Gear Speed Reducer 143T 20: 1 Size 70 (Right Output) TUM7020 R Part No: TUM7020 R Product Category: Universal Series: TUM Type: Gear Speed Reducer Size: 70 Shaft Output: Right # of Outputs: 1 Ratio: 20: 1 Flange: 143T Input Bore (U): 7 8" *7V** (IN): 3 16*32 LOutput Shaft (S): 2 3 8" Output Shaft (S): 1 1 8" *WY** (IN): 1 4*1 8 LA (IN): 5. 875" LB (IN): 4. 5" LC (IN): 6. 5" LE (IN): 0. 197" Z1 (IN): 0. 433"

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I had a project where I was extending the depth of the bottom half of a bookcase I had made out of pre-drilled MDF from Home Depot. The original bookcase was 11" deep x 10' high. The extended depth of the bottom is to be used to hold audio gear and needed to be 18" depth, front to rear. I was able to increase the depth but had to insert additional panels on the left and right so that shelf pins could be installed. I needed a shelf pin jig to do that, and this jig was perfect for the job. After completing my holes and mounting some shelves I was pleased that the alignment with the inner portion of the shelf was perfect and the distance between holes lined up exactly as with the original panels from Home Depot. The jig is high quality fabricated aluminum, not plastic, and it comes with two drill bits, and stop and Allen wrench, including an instruction manual, all in an attractive plastic case. The jig is well worth the modest price and I would definitely recommend it for drilling shelf clip holes.

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Reviewed in the United States on October 27, 2024

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To Protect the Innocent

San Leandro, US

★★★★★ 5

a solid choice

I realized I don't need to drill 5mm holes, so this item is just perfect. It's higher quality than those other cheap-chinese noname jigs. In particular: * The stop collar provided actually fits the drill bit. I had one from Tanyo that had too-big collars that didn't stay put. * The fence pins are very soilid, so the jig doesn't move while in place. Other brands have a long knurled screw that wobbles and allows the kiig to move around. * The plate is thick, making it feel sturdy. * It's phyically smaller than the others, because it doesn't have any useless features like euro-hinge hole guides. The case is more compact and stores well. Overall, very satisfied with this jig.

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Reviewed in the United States on April 3, 2026

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San Leandro, US

★★★★★ 5

Great product

Great well made product and nice case. Works great for 1/4” holes.

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Reviewed in the United States on May 15, 2026

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Lori Cook

Houston, US

★★★★★ 5

A solid and easy to use product.

Worked like a charm. It is extremely durable and easy to use. I bought this item because the one I wanted wasn’t available. I don’t regret getting it.

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Reviewed in the United States on April 22, 2026

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Bill

Massapequa, US

★★★★★ 5

very nice tool

likes, all aluminum construction, seems very accurate and uses more sturdy 1/4 inch shelf pins instead of the 5mm ones comes with 2 bits which is a huge plus the competition makes you buy the 1/4 drill and only is set up for 5mm to start. this jig will work along side, for now, my other jig dislike is the fact it only has 1/4 pin capability not a deal killer in any way, and it has "pins" to support the jig on the edge again this is both an advantage and disadvantage as you can change the depth of where the pins are located BUT if you are making something smaller the jig may not calibrate consistently. on another positive you can replace the bits easily and commonly as they are not proprietary and simply standard 1/4 inch bits this will be a fine addition to my other goingmake tools and future ones

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Reviewed in the United States on January 3, 2025