93mm hole drilled 70" long steel bar. How hard can itbe

This is my smallest tool at 93mm. I intent to make a tool to cut 75mm.

Making a drill to cut 3"hole x75" long steel bar from solid. 😲
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Making a drill to cut 3"hole x75" long steel bar from solid. 😲

The Most Ridiculous Mistakes Workers Make Caught on Camera
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The Most Ridiculous Mistakes Workers Make Caught on Camera

First Time in Pakistan! Completely Broken Giant Bearing Manufactured Brand New
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First Time in Pakistan! Completely Broken Giant Bearing Manufactured Brand New

Metal Spinning | Forging job | Turning and Boring
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Metal Spinning | Forging job | Turning and Boring

If These Train Moments Weren’t Filmed, Nobody Would Believe Them
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If These Train Moments Weren’t Filmed, Nobody Would Believe Them

Unbelievable Smart Worker & Hilarious Fails | Construction Compilation Pt6 #fail #construction
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Unbelievable Smart Worker & Hilarious Fails | Construction Compilation Pt6 #fail #construction

🔥 Caterpillar Front Differential Exploded Under Heavy Load – Complete $10,000 Rebuild
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🔥 Caterpillar Front Differential Exploded Under Heavy Load – Complete $10,000 Rebuild

Unbelievable Workers | Working with Talented Engineers. EP175 #construction#adamrose#workers#smart
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Unbelievable Workers | Working with Talented Engineers. EP175 #construction#adamrose#workers#smart

Poland Just Did Something BRUTAL To Bypass Kaliningrad... Putin's Trap BACKFIRED
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Poland Just Did Something BRUTAL To Bypass Kaliningrad... Putin's Trap BACKFIRED

Pakistan’s First Massive Bulldozer Engine Pinion Manufacturing | Complete Machining From Scratch
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Pakistan’s First Massive Bulldozer Engine Pinion Manufacturing | Complete Machining From Scratch

machine alignment problem pt 1 of 3
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machine alignment problem pt 1 of 3

Machining Steel not always easy 12" hole drilled by Trepanning inconel 718
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Machining Steel not always easy 12" hole drilled by Trepanning inconel 718

Unbelievable Workers | Working with Talented Engineers #51 #construction #workers #smart #adamrose
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Unbelievable Workers | Working with Talented Engineers #51 #construction #workers #smart #adamrose

Skilled Mechanic Straightens a Severely Bent Hydraulic Cylinder Rod | Amazing Repair Process
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Skilled Mechanic Straightens a Severely Bent Hydraulic Cylinder Rod | Amazing Repair Process

Aggressively Removing Over 100kg of Steel
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Aggressively Removing Over 100kg of Steel

Revealing The SPECIAL TECHNIQUE Of A Pakistani Man To EXTRACT GOLD From Used Motherboard Waste
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Revealing The SPECIAL TECHNIQUE Of A Pakistani Man To EXTRACT GOLD From Used Motherboard Waste

Unbelievable Smart Workers | Genius Construction Skills, Crazy Fails | Part 100 #construction #smart
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Unbelievable Smart Workers | Genius Construction Skills, Crazy Fails | Part 100 #construction #smart

Wow! Top 3 Genius Ideas every turner should see
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Wow! Top 3 Genius Ideas every turner should see

Massive Hopper Jam Cleared With Hammer | Giant Rocks Block Stone Crusher!
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Massive Hopper Jam Cleared With Hammer | Giant Rocks Block Stone Crusher!

These Pakistani Workers Left the Internet Speechless | Impossible Manufacturing Skill
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These Pakistani Workers Left the Internet Speechless | Impossible Manufacturing Skill