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  • Precision Twist D33F Solid Carbide Short Length Drill Bit, Uncoated (Bright) Finish, Round Shank, Spiral Flute, 118 Degree Point Angle
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Precision Twist D33F Solid Carbide Short Length Drill Bit, Uncoated (Bright) Finish, Round Shank, Spiral Flute, 118 Degree Point Angle

Available in multiple versions

15 customer reviews

Price: $5.94 - $112.59
Product Specifications
Brand Name Precision Twist
Material Type Carbide
Finish Types Uncoated (Bright)
Cutting Angle 118  Degrees
Cutting Direction Right-Hand
Drill Point Conventional
Flute Type Spiral
Shank Type Round
UNSPSC Code 20121600

The Precision Twist D33F jobber-length, uncoated, heavy duty, round shank drill bit drills hol... Read full product description



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Product Features

  • Solid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle and must be used with rigid toolholding systems
  • Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications
  • Round shanks allow use with a wide variety of toolholding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • Standard length

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B004P8JRMK
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (15 customer reviews)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Product Description

The Precision Twist D33F jobber-length, uncoated, heavy duty, round shank drill bit drills holes into a wide variety of metals and synthetic materials. It can drill to a depth up to three times the diameter of the drill size. The shank diameter is the same as the drill size.

The D33F series has a type N flute form, with a standard spiral (21- to 34-degree helix angle) have best performance for drilling into copper and synthetic materials. The uncoated finish helps increase chip flow in soft materials. Round shanks allow use with a wide variety of tool holding systems.

Made of carbide, a metallic carbide composite with binder material, many times harder/stiffer than high-speed steel (HSS), will hold an edge longer, and will deflect less than HSS. These are also more resistant to heat than HSS. These qualities allow it to run at higher speeds and feeds. They are made to ANSI (fractional sizing) industry standards, which ensure that drill bits around the world conform to the same specifications.

Drilling, or hole making, is the most common metalworking operation in the world. Twist drill bits are the most common type of drill bit used. Twist drill bits are commonly used to drill holes with hand-operated drills, standalone drill presses, or lathes. The flutes of the drill bit act a passageway for chip extraction from the hole and for coolant to enter the hole. These drill bits have a right-hand twist that brings chips up and away from the cutting edge.

Precision manufactures machine tools under the following brands: Precision Twist, Precision Dormer, and Union Butterfield. They have locations around the world, and provide tools adhering to ANSI, NAS, and DIN standards.


Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

2 of 2 people found the following review helpful By Josh Smith on September 22, 2011
Size: 3/32" Verified Purchase
Hello,

I don't know much about drills except they put holes in things. For example, until very recently I didn't know the different twists, flutes, etc.

However, I do have certain training that requires some use of drills, and that use is solely on metal, just standard carbon steel of varying hardness.

This first one lasted me for quite a while, and some of that time I had to drill dry. There was no walk like I had had with regular titanium drills purchased at the hardware store, and my drilling time has been cut significantly. The chips clear out quickly. I had ordered a replacement that uses a slow twist and I'm not getting the same cleaning effect, so I'm placing another order for one of these.

Regards,

Josh Smith
Smith-Sights
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2 of 2 people found the following review helpful By TCvGII on January 24, 2014
Size: 7/32" Verified Purchase
So I needed to put a mekugi hole in the tang of a katana I was assembling. here's the problem: the blade was deferentially hardened 1060 high carbon steel. I used a normal drill bit and not only was the drillbit blunted, but all I did was make a marking scratch for where I was putting the hole anyway. I was worried about just getting a tungsten carbide tipped drill, since the tang was thick, so I went with the whole thing. Basically was like a regular drillbit going through wood, maybe with a little bit of effort behind it. all that was required later was to file off the burs around the hole. could not have asked for a better drill into hardened high carbon steel. will buy again if I need another one.
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To people for whom this bit snapped - did you use this in a Vertical Mill or Metal Lathe? If not, that's why it broke. These are soooo hard, that they're incredibly brittle. If your machine is not rigid, it will allow the bit to bend and break. If your machine has more than a few thousandths (.001") of runout (rotating off center), the bit will break. This bit is meant to double production speed for high-end production shops. For home shops, normal HSS or Cobalt drill bits will bend (a little) without breaking. If you need to drill harder materials with hand tools or a drill press, use masonry drill bits. The carbide tip is hard enough to cut the metal and the HSS bit material will accept some vibration or bending without snapping.

Once again - this bit is perfect for its intended use!! It's not meant to help cook breakfast - it's meant to make holes in hard materials quickly and efficiently in production machines.
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Size: 3/16 in Verified Purchase
I have been trying to drill out a snapped bolt in an engine block for 2 weeks, making millimeters of progress a day. I bought this thing, put it in a hand drill (even though it says not to) added some WD40 for lube, and the results were unbelievable. Chips started forming instantly with almost no pressure on the work. Job was done in seconds. Don't confuse carbide with ti coated or other home depot junk - this thing is a monster.
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It broke almost right after the first use. I didn’t even use that much pressure on it. But it broke anyway. This was a waste of my money. I figure it’s probably a fluke in the manufacturing, so I wouldn’t be surprised if I ordered a new one and it actually worked. But still, I’m disappointed. I don’t want to have to pay for another one and no one at customer service will answer my calls.
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Size: 1/4 in Verified Purchase
My 1/8 carbide drill bit drilled through a hardened steel blade like it was copper. Slow speed, cutting oil. drill press. Previous attempts at the same job with cobalt bits were a failure. Herman. Coral Gables Fl
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By carl p brechler on August 20, 2013
Size: 1/32" Verified Purchase
Like the headline says, it's a drill. It fits into a drill chuck just like a drill should. It makes holes in things when used properly, just like a drill should.
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By CPM on January 17, 2014
Size: 31/64" Verified Purchase
This product is of good quality and I would definitely recommend this product.
I am quite pleased with this purchase.
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