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CMT 537.120.31 Forstner Bit, 12mm (15/32-Inch) Diameter, 8mm Shank

4.2 out of 5 stars 74 customer reviews
| 9 answered questions

Price: $8.36 & FREE Shipping on orders over $49. Details
Only 13 left in stock.
Ships from and sold by Amazon.com. Gift-wrap available.
SHK 5/16 | CD 12mm (15/32)
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  • 3-35/64-Inch Overall Length, Right-Hand Rotation.
  • 2 spurs, 2 precision ground cutting edges, long-lasting cutting performance
  • Drill precise flat bottom holes with no chipping in any thickness of soft wood
  • For drilling holes in any direction and making arched openings
  • For drilling partially overlapped flat bottom holes or niches used to fix supports
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$8.36 & FREE Shipping on orders over $49. Details Only 13 left in stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • CMT 537.120.31 Forstner Bit, 12mm (15/32-Inch) Diameter, 8mm Shank
  • +
  • SOSS Mortise Mount Invisible Barrel Hinge, Solid Brass, Satin Brass Finish, 12mm Diameter, 5/8" Door Thickness, 13.5mm Mortise Depth (Pack of 24)
Total price: $45.33
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Size: SHK 5/16 | CD 12mm (15/32)
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Product Description

Size: SHK 5/16 | CD 12mm (15/32)

Forstner bit featuring special alloyed steel body, precision balanced center point, 2 spurs, 2 precision ground cutting edges for long-lasting cutting performance. Use to drill precise flat bottom holes with no chipping in any thickness of soft wood. For drilling holes in any direction and making arched openings. For drilling partially overlapped flat bottom holes for easy mortising. For drilling niches used to fix supports.

Product Information

Size:SHK 5/16 | CD 12mm (15/32)

Technical Details

Part Number 537.120.31
Item Weight 0.3 ounces
Product Dimensions 3.5 x 0.5 x 0.5 inches
Item model number 537.120.31
Size SHK 5/16 | CD 12mm (15/32)
Material High Speed Steel
Item Package Quantity 1
Batteries Required? No

Additional Information

ASIN B000P4HLEY
Customer Reviews
4.2 out of 5 stars 74 customer reviews

4.2 out of 5 stars
Best Sellers Rank #110,547 in Home Improvements (See top 100)
#90 in Home Improvement > Power & Hand Tools > Power Tool Parts & Accessories > Power Drill Parts & Accessories > Drill Bits > Forstner Drill Bits
Shipping Weight 0.3 ounces (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available April 3, 2007

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: SHK 5/16 | CD 30mm (1-3/16) Verified Purchase
I read the reviews before I purchased this bit and they seemed pretty good. I am boring very shallow holes in 2 1/2" solid oak. I had used another forstner bit to bore other holes in the same piece to join pieces with hanger bolts. The other bit i used, I purchased at home depot and it worked perfectly. I had to buy this bit here because I needed 1 3/16" holes. It is actually a metric measurement and is not quite the advertised size. I mic'ed it and it is actually 1.128" and it should be 1.188" Either way the bit had no tear-out but doesn't do very well on hardwoods for deep holes. I am fortunate that the bit doesn't drill very fast because I only need to drill a 1/16" deep recess for the elevator bolt head to mount flush in a tabletop. If you need a bit that cuts fast and deep in hardwood, this is not it.
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Size: SHK 5/16 | CD 30mm (1-3/16) Verified Purchase
My husband couldn't find this size Forstner bit in our area so I ordered this one from Amazon. It was just what he wanted to make a certain wood project for his crafty items. It was of good quality and just the right item for him. Would recommend this item.
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By Luke on May 7, 2015
Size: SHK 5/16 | CD 10mm (25/64) Verified Purchase
Its no Bormax, but for the price not too bad. CMT's quality does vary quite a bit between their products, so I've noticed, so be aware when you're purchasing something from them that it might not be all its cracked up to be.
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By joe on October 6, 2013
Size: SHK 5/16 | CD 30mm (1-3/16) Verified Purchase
did exactly what i need it to do , put your drill press on it's lowest speed ,and with a bit of ingenuity it will make a 2 1/2" deep hole with a fairly smooth finish in hardwood, made about 300 holes so far without having to sharpen , but for the price,l just get a new one when its time
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Size: SHK 5/16 | CD 30mm (1-3/16) Verified Purchase
The job was to drill 144 holes for ceramic cylinders based on specifications provided by the artist. He was off by a 1/16th on the diameter and I had to go back and redrill the holes a bit larger. This bit did the job well with no fuss or travel.
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Size: SHK 5/16 | CD 30mm (1-3/16) Verified Purchase
Been working on an Arcade Stick and it uses Sanwa buttons, Instructions called for a 30mm hole saw, but I like Forstner bits better and it worked perfectly.
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Size: SHK 5/16 | CD 30mm (1-3/16) Verified Purchase
Another fine item from CMT. 1-3/16 is a bit of an odd size and not found in many sets. This one was fairly priced and arrived quickly. It's remained sharp after boring about fifty holes in 3/4" ply...not much of a test, but it did the job for me. YMMV.
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Size: SHK 5/16 | CD 12mm (15/32) Verified Purchase
It did not last at all! A few holes and it became dull, so I returned and bought a carbide Forstner instead. I was expecting the CMT bought from Amazon to be as good as some I have bought at Menard's, but such was not the case. I don't know who supplies them to Amazon, but the packaging was nicer than those from Menard's, but the quality of the tool is terrible.
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CMT 537.120.31 Forstner Bit, 12mm (15/32-Inch) Diameter, 8mm Shank
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