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Internet # 203499108

Model # 31870

2-1/2 in. Carbide Hole Cutter

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  • Carbide Hole Cutter cuts material up to 3/16 in. thick
  • Cuts stainless steel, mild steel, iron, copper, and brass sheet
  • Perfect for 2 in. conduits and pipes
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Product Details

About This Product

This carbide hole cutter cuts quick, precise holes in a variety of materials. Integrated flange prevents the operator from drilling beyond the sheet metal. Split point pilot drill bit prevents bit walking.


  • Heavy duty, durable carbide hole cutters for long life
  • Cuts quick, precise holes in stainless steel, mild steel, iron, copper and brass sheet up to 3/16-Inch (0.5 cm) thick
  • Split point pilot drill bit prevents bit walking
  • Integrated flange prevents the operator from drilling beyond the sheet metal
  • Conduit and pipe sizes: 2-Inch (5.1 cm)
  • Uses replacement pilot bit 31874
  • Click here for more Klein Tool products
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Product Information

Internet # 203499108

Model # 31870

Additional Resources

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Bit Diameter

2-1/2 in

Bit Length (in.)


Drilling Depth (in)


Hole Saw Diameter (in)


Shank Diameter

3/8 in


Arbor included


Arbor Size


Bit Material


Drill Bit Type

Hole Saw

Drill Bit Type(s) Included

Hole Saw



Material Cut


Min Chuck Size Required

3/8 In.

Pilot Bit Included




Shank Style


Teeth Per Inch


Tools Product Type

Power Tool

Questions & Answers

Q:Can this go through wood as well?
by|Oct 23, 2016
2 Answers
Answer This Question

A:  Probably, but,it is limited to 3/16" of depth. So drilling from both sides would limit you to drilling a piece of wood 3/8" thick.

by|May 4, 2023

A:  The Klein Tools model # 31870 Carbide Hole Cutter is designed to cut through sheet metal up to 3/16 in. thick. A better option for wood applications is the Klein Tools 2-1/2 in. Bi-Metal Hole Saw (Model # 31940).

by|May 4, 2023
    Showing 1-1 of 1

    Customer Reviews

    4.8 out of 5

    • 4.8 out of 55 reviews
    • 100% recommend this product
    Filter by:
    Showing 1-10 of 55 reviews
    I used this to cut plumbing holes in the back of stainless steel outdoor cabinets. It cut it like butter!
    • Verified Purchase
    Amazingly smooth cut!!!
    It’s incredible how much of a perfect hole this cut’s compared to an average hole saw- Klein just made a better mousetrap…
      • Recommended
      Durability that exceeds expectation
      Have used practically every major brand and while they're typically all more or less the same tool, some do hold up noticeably better after harsh relentless use, these being top contenders for sure.
        • Recommended
        Great holesaw
        I've had this in my collection for a few years and it hasn't disappointed yet. I don't use it everyday but maybe a couple times a year.
          • Recommended
          Great tool
          Like a hot knife through butter! This is a must have tool!
            Best on the market
            [This review was collected as part of a promotion.] Does it's job very well, I won't have any other brand.
              • Recommended
              Carbide Hole Cutters
              Cuts like butter. It is a Klein, so guaranteed quality.
                • Recommended
                Great Hole Saw!
                I have used numerous other hole saws from many different brands but this was hands down the easiest to work with. From attaching to my drill to drilling out the hole to having the right size, just great!
                  • Recommended
                  Great product
                  This is a handy tool, I am a painter it helps me get the right size hole for doors and different stuff. Especially since I am a woman painter.
                    • Recommended
                    Awesome hole saw!!
                    I’ve been using this for a couple months at work with no issues. Great cutting power and durable!
                      • Recommended
                      Showing 1-10 of 55 reviews