Model # 6758

Internet #100392633

RIDGID 3/16 in. Cobalt Drill Bit
0035781018111

Discontinued RIDGID

3/16 in. Cobalt Drill Bit

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Product Overview

The RIDGID 3/16 in. Cobalt Drill Bit is designed for drilling in metals and is made with the proprietary CG Power process for speed, strength and durability. The 143° split point cuts on contact.

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Customer Questions & Answers

I need large quantities of these and will need to keep in stock regular monthly usage will be around 50. Please let me know the easiest way to do this

Asked by: Anonymous
I would contact your local H.D. store Pro-Services department regarding bulk purchasing rather than requesting they carry that large amount available in-store for you to buy as needed.
Answered by: RednexToyz
Date published: 2016-07-20

Can this bit drill through 304SS?

Asked by: Cameron
Yes...if you pre-drill a 16th hole first. A drill press works best with slow constant pressure. Lube oil every 15 seconds. High speeds will cause your SS to tarnish and the bit will cook then ruin...slow is good!
Answered by: Cypressdweller
Date published: 2015-09-20
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Customer Reviews

3/16 in. Cobalt Drill Bit is rated 3.9 out of 5 by 31.
Rated 2 out of 5 by from Didn't break... Drilling out some magnetic stainless (400 grade) self-tappers in my grill that I'm converting to propane and a cobalt bit I got from the hardware store went through 24 holes in fresh 16 gauge stainless was still able to drill out two of these rusted screws on the burners. This Rigid bit went through one and took the Phillips pattern off the other three before going completely dull. Used low speed + oil. Got no smoke...the bit should last longer than that seeing as an old bit went through two heads and this one fresh could only do one. Went from screw to screw to negate heat build up in work. Disappointing to see a $4 single bit do so little.
Date published: 2009-03-16
Rated 5 out of 5 by from Long lasting. Really shape and held its edge for over 100 holes in 1/4" angle iron.
Date published: 2015-08-25
Rated 2 out of 5 by from Hit or miss The quality of the bit was hit or miss. I bought several of the bits because I was drilling 100+ holes through 1/4" steel columns. The first bit worked like a charm, cut over 70 holes before dulling the bit. To finish the project I had to open three more packages to get a second bit that worked as well as the first. Product works great when it works, but it appears that there are quality control issues.
Date published: 2015-02-17
Rated 5 out of 5 by from Best drill bit ever made This drill bit makes the job done easy. I used it to make several holes on a thick metal frame. It is still as sharp as if I had just open it from the package. I highly recommend rigid drill bits, they are way better, stronger and last longer than any other brand. If you have a big project to do rigid drill bits are the way to go.
Date published: 2015-05-06
Rated 1 out of 5 by from returned pretty quick bought a set of ridgid cobalt bits on clearance at home depot to install some hardware on doors at a church here in town. i tried to drill through a push plate for a bolt using a 3\8 bit. all it did was spin. ive read how far superior cobalt bits are to titanium but now because of this purchase I am skeptical.
Date published: 2016-02-11
Rated 4 out of 5 by from 1/2 in. Cobalt Drill Bit It did what I wanted it to do without any problems.
Date published: 2015-11-12
Rated 5 out of 5 by from Finest Drill Bits These cryo treated cobalt drill bits are fantastic. I had a project that had a lot of rivets into 1/8" steel and 26 gauge sheet metal. I started the project with a TiN bit, thinking it would do the job, way too much work. These holes I made were drilled with a corded drill, free hand, standing and kneeling and in awkward positions, so it was hard to keep the drill aligned. After four holes with the TiN bit, I switched to this bit. Over 300 holes later, I was still getting curls, the bit was showing a little wear, but holes were made quickly. If you have to drill metal, use these bits...
Date published: 2015-10-06
Rated 4 out of 5 by from Great for hardened metal drilling Snapped a bolt head while installing a cylinder head on a small engine. Grabbed my cheap Ryobi bits and drilled away. Realized after 10 min. that they weren't going to work. Picked up one of these bits and had a 1/4" deep hole bored into the bolt within 10 min. I was then able to remove the bolt with an extractor. Must have for hardened metal drilling.
Date published: 2013-04-15
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