Drill America 29 Piece Cobalt Stepped Point Drill Bit Set in Round Case w/Gold Oxide Finish for Drilling Acrylic, Steel, Hard Metals, Sizes 1/16″ to 1/2″ x 64ths, GSC Series ZMGSC29J-PC

9 reviews for Drill America 29 Piece Cobalt Stepped Point Drill Bit Set in Round Case w/Gold Oxide Finish for Drilling Acrylic, Steel, Hard Metals, Sizes 1/16″ to 1/2″ x 64ths, GSC Series ZMGSC29J-PC

1. 

   Amazon Customer – November 10, 2025

   You get what you pay for!!
   Very clean, fast drilling in everything I have tried so far from wood to stainless steel. Expensive but extremely high quality and compact, convenient storage case. As a professional truck mechanic l highly recommend.

2. 

   Scott G. – November 10, 2025

   Good for metal
   These bits are good for going thru metal, maybe to good. They get such a good “bite” that I have snapped one bit already.

3. 

   Michael C – November 10, 2025

   First bit broke immediately.
   7/32nds bit broke on me the first time I used it. The step portion cracked off right away then the rest of the bit spun around with no bite. Had to fish out the chips with pliers then used a Bosch cobalt bit to finish the job.Will update the score up if the other bits hold up better

4. 

   Hawaii – November 10, 2025

   Cut fast and clean
   Drill bit works very good drill through metal fast

5. 

   Lucas S. – November 10, 2025

   Good drills, but arrived with cracked plastic cover.
   So far, the drills look awesome. The only reason I didn’t leave a 5 star review is that the plastic canister arrived with a cracked cover…hoping that Drill America sends a new one so I can give it a full 5-star review.

6. 

   Michael Buckley – November 10, 2025

   Bits drill nicely
   Bigger bits work great , small ones break easily but it could also be me

7. 

   Adam Lee Kemp – November 10, 2025

   Works great for drilling through hardened steel, where others fail!
   Exactly what I needed. Broke several other titanium bits before buying these. I used them to drill into Jeep Hardened Steel Roll Cage for Hi-Lift Mount. And these did the trick. Just go slow and use drilling oil, and you’re good to go. Also used these to drill through four other steel plates up to 1/2” thick. And cut like butter. Highly recommend.

8. 

   Scott Francis – November 10, 2025

   Unique & well worth the money.
   Best drill bits in the world !! Have used them where standard bits wouldn’t make a dent !! Not necessary to prick punch when drilling hard metal.

9. 

   Multi Service RSB – November 10, 2025

   boitier de meche endommage couvert casse