Drill Bits for Structural Steel

Structural Steel Drill Bits For CNC Beam Drill Lines

At Ocean Machinery we are committed to providing you as many options as possible with regard to drilling with your Ocean Avenger or any other CNC Beam Drill Line. We stock a full range of drill bits and insert drills from several manufacturers, including

  • Ocean PENETRATOR Cobalt Twist Drill Bits
  • Nachi Cobalt Twist Drill Bits
  • Allied Insert Drill Bits (spade drill bit)

If you are not sure whether to use Twist Drill bits or Insert Drill Bits on your Drill Line, please take a look at The Big Debate – Insert Drill Bits vs. Twist Drill Bits below.

Ocean Machinery’s huge buying power results in the lowest cost per drill to our customers. We are able to ship directly from our warehouse to your shop, and if you get in your order before 4pm EST we will normally be able to ship the same day.

Ocean Penetrator Cobalt Twist Drill Bits – Taper Shank

The Ocean Penetrator is a taper shank twist drill bit specifically designed for fast productive drilling of structural steel profiles with CNC beam drill lines of all types.

The drill features a chip breaker design that quickly breaks off the chips into small manageable pieces and avoids the long stringy chips that normally plague drill lines.

The Ocean Penetrator drill bits feature oil coolant holes that run through the drill bit to cool the center of the drill while it is drilling through all structural steel profiles including beams, channel, angle, plates, tube, etc.

This results in exceptional tool life. Our customers average anywhere from 300 to 500 holes per sharpening, and are able to get more than 100 sharpenings per drill bit. This yields in excess of 30,000 holes per drill bit resulting in significant savings and improved overall fabricating profitability.

During testing this COBALT Structural Steel drill bit drilled 490 holes in 1 hour, and even after 500 holes was still drilling holes at less than 8 seconds per hole. (See the Ocean Penetrator Cobalt Drill Bit video to the left)

The Ocean PENETRATOR COBALT Drill Bits arrive from the factory pre-sharpened to 170 degrees with a split point. This is ideal for structural steel and results in burr free holes that further reduces costs by eliminating the costly grinding of the exit hole.

FEATURES:

  • Cobalt Steel – longer life – in our recent testing we were able to drill well over 500 holes before resharpening was required. Dramatically reduces costs.
  • Pre-sharpened to 170 degrees with raised tip -this is the ideal recommended tip for structural steel. No need for pre-sharpening.
  • It requires only a single-stage drill grinding procedure. This simplifies the resharpening and saves resharpening time
  • More than 500 holes between sharpenings
  • Should yield 50,000 holes per drill bit
  • Faster Drilling feed rates – The Ocean Penetrator works best at 7.1 in/min of feed rate – almost 20% faster than regular twist drill bits. This results in faster drilling times. Click here for recommended feed & speed rates.
  • Chipbreaker point – eliminates long stringy chips that clog swarf bins and fly all over the shop.
  • It requires only a single-stage drill grinding procedure and saves resharpening time.
  • No grinding required on the exit of the hole with properly sharpened drills – dramatically reduces costs.

BENEFITS:

  • Much cheaper than mag drill annular cutters. Reduces the consumable cost from approximately 20c per hole to less than 1/2c – this is 4000% reduction in drill bit costs compared to mag drill cutters
  • Much cheaper to run than insert drill bits (approximately 10X cheaper than insert drill bits)
  • Simple to re-sharpen – only 1-step process. New 170 degree point further simplifies sharpening process
  • Faster feed rate = shorter drill time = faster production. A 213/16″ diameter only takes 7 seconds to drill through 3/8″ steel.
  • Eliminates grinding of exit hole

* Faster Drilling feed rates – The Ocean Penetrator works best at 7.1 in/min of feed rate – almost 20% faster than regular twist drill bits. This results in faster drilling times. Click here for recommended feed & speed rates .*

 ocean-penetrator-drill-bit-shop

 

 

 

 

 

 

 

Nachi Cobalt Twist Drill Bits – Taper Shank

Possibly the most well known drill bit on the market. This bit has proven itself in thousands of fabrication shops around the World

  • Made in Japan
  • 6-1/2″ of flute length
  • Only available up to 1-1/2″ dia with #4 Morse Taper
  • No Extended length drills available
  • Available in 1/32″ and 1/64″ sizes (call Ocean for stock on hand)
  • Between 300 and 500 holes between sharpenings
  • Should yield 30,000 holes per drill bit.
  • No grinding required on the exit of the hole with properly sharpened drills – dramatically reduces costs
  • Supplied with 118 Degree drill point angle. This drill must be pre-sharpened to 175 degrees prior first use.

Call Ocean Machinery at 1-800 286 3624 today to order your Nachi drill bits for your Ocean Avenger or other CNC Beam Drill Line

 

 

 

 

 

 

Allied Insert Drill Bits (Spade Drill Bits) – Taper Shank

Insert Drill bits are also known as Spade Drill bits. Insert Drill Bits are well known to large fabricators. They eliminate the need for a drill sharpening machine.

  • American Made
  • Throw away inserts (T/A) screw into special insert holders.
  • Various drill point geometry and coatings are available
  • Metric sizes are available
  • Extended Lengths are available
  • Between 800 and 1,000 holes per disposable insert
  • No drill sharpening needed
  • Only available up 1-7/8″ diameter
  • You will need to grind the exit of the hole as the insert drill bits are radiused at the tip – this leaves a significant burr that must be ground prior to bolting.
  • Simple to change out inserts – Tips are priced individually but are sold in pairs

Call Ocean Machinery at 1-800 286 3624 today to order your Allied drill bits for your Ocean Avenger or other CNC Beam Drill Line

 

 

 

 

 

THE BIG DEBATE – INSERT DRILL BITS VS. TWIST DRILL BITS

We at Ocean Machinery are often asked by our customers what drill bits should they use – twist drill bits or insert bits? While we have always recommended and still recommend Twist Drill Bits, there have been significant strides in the recent past with regard to insert spade bits that are worth noting….

 

Insert Drill Bit (Spade Drill Bit) Advantages Insert Drill Bit (Spade Drill Bit) Disadvantages Twist Drill Bit Advantages Twist Drill Bit Disadvantages
Savings – You avoid having to spend $10,000 on a drill grinder.
Convenience – They always have a perfectly ground structural point
Cost – Insert Drill require holders for each drill size and you require at least two holders of each size. Savings – You do not need to grind the exit of the hole – save on non value added activity. Inconvenience – You need to train an operator how to sharpen drills.
Simplicity – They can just be discarded when dull and they are cheap to replace – around $30 every 800 – 1000 holes. Cost – Insert bits definitely leave a burr on the exit of the hole, especially on lighter profiles and the fabricator must spend money on labor and consumables to grind the exit of the hole. Savings – Twist drill bits cost less than 1/10th the cost of insert drill bits. Cost – you have to purchase a $10,000 drill grinder.
Convenience – Nobody has to learn the art of sharpening drill bits. Cost – If an insert breaks, the tool holder will be damaged and will have to be replaced – replacing tool holders is expensive. Convenience – It only takes a couple of hours to train an operator to be able to sharpen drill bits.
Cost – If the Torx head holding the insert is stripped you have to replace the tool holder – replacing tool holders is expensive. Savings and Convenience – you can purchase twist drill bits from any vendor – you are not locked into a particular supplier.
Savings – No matter how badly you dull a drill point it can always be resharpened – in some cases you can also resharpen a broken drill bit.

 

OCEAN REJUVENATOR DRILL BIT SHARPENER

Resharpening of the drill bits is a simple one-step process on the Ocean Rejuvenator drill bit sharpener. The operator is able to easily resharpen drill bits in less than 2 minutes and this is normally done while the CNC drill line is running, meaning that the drill resharpening is done during operator idle time.

>>>CLICK HERE TO LEARN MORE ABOUT
THE OCEAN REJUVENATOR DRILL BIT SHARPENER

 

 

Call the Ocean Machinery sales team TODAY at (954) 956-3131 or Toll Free 1 (800) 286-3624 or fill out our online info request form for more information on Drill Bits for Structural Steel or the Ocean Rejuvenator Drill Bit Sharpener.

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