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Irwin Tools IRWIN Marples Forstner Bit Set, Wood Drilling, 8 Piece (1966892)

  • Based on 2,002 reviews
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Availability: In Stock.
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Arrives Friday, Mar 27
Order within 16 hours and 23 minutes
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Features

  • Easily drills high-quality flat-bottomed and pocket holes
  • Features optimized ultra-sharp cutting teeth specifically engineered to cut through hard and soft woods smoothly and efficiently
  • Significantly reduces cutting time compared with traditional forstner bits
  • Reduced shank fits 3/8" and larger drills and drill presses
  • Set includes 1/4" (6.3mm), 3/8" (9.5mm), 1/2" (12.7mm), 5/8" (15.8mm), 3/4" (19.0mm), 7/8" (22.2mm), 1" (25.4mm), 1-3/8" (34.9mm) forstner bits

Description

IRWIN Marples Wood Drilling Forstner bits are constructed of tough carbon steel to stay sharp and produce precise pocket holes and flat-bottomed (blind) holes. The ultra-sharp cutting edges feature optimized angles to cut more quickly and accurately through hard and soft woods than traditional forstner bits. With a reduced shank, these bits fit 3/8" and larger drills and drill presses, these wood drill bits are ideal for fine woodworking, cabinet-making and more. Set includes 1/4" (6.3mm), 3/8" (9.5mm), 1/2" (12.7mm), 5/8" (15.8mm), 3/4" (19.0mm), 7/8" (22.2mm), 1" (25.4mm), 1-3/8" (34.9mm) forstner bits.

Material: Blend


Cutting Diameter: 34.9 Millimeters


Finish Type: Brushed


Shank Type: Straight


Cutting Angle String: 6E+1 Degrees


Cutting Diameter: 34.9 Millimeters


Item Dimensions: 9.6 x 2.5 x 9.7 inches


Minimum Bore Diameter: 6.3 Millimeters


Material Type: Blend


Finish Types: Brushed


Shank Type: Straight


Surface Recommendation: Steel,Wood


Cutting Angle String: 6E+1 Degrees


Tool Flute Type: Straight


Point Style: Center Point


Number of Flutes: 2


Brand Name: IRWIN


Model: 1966892


UPC: 042526943546


Global Trade Identification Number: 46, 40


Manufacturer: Irwin Tools


Item Type Name: IRWIN Marples Wood Drilling Forstner Bit Set, 8 Piece


Included Components: Marples Wood Drilling Forstner Bits(8)


Item Weight: 1.84 Pounds


Unit Count: 1.0 Count


Warranty Description: CN


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Mar 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • so far so good. did a good job.
Nice, sharp and cut good. What I needed.
Reviewed in the United States on January 15, 2026 by Mark

  • Exceptional Forstner Bit Set
I was looking for a set of forstner bits to cut holes for scroll saw projects. I have used Irwin tools many times in the past and have been satisfied with their quality, so I decided to give the Irwin forstner bits a try after reading the reviews. The case is very well designed. The bits are very sharp and durable. The type of wood I have used the bits on so far has been primarily poplar wood which is a softer hardwood, so I can not attest to how the bits will work with the harder woods, but for what I need them for, they have performed as well if not better than expected. The case that the bits are enclosed in is very secure. Unlike some cases I have had, the bits do not drop out when opened if upside down, they are secure and have to be intentionally removed. It was a very good price and I am very pleased with this forstner bit set. I would highly recommend this bit set. ... show more
Reviewed in the United States on August 19, 2025 by btseed btseed

  • Great drill bits
Awesome drill bits. I use them all the time. I build a lot of things from scratch using different types of wood and these drill bits work really great. I use them in my drill press all the time. The holes are perfect and true to size. I would recommend them to anyone who does woodworking
Reviewed in the United States on December 29, 2025 by Doug Powell

  • Wide diameter shaft
These are very nice but they do not fit in a standard diameter router as far as I could tell, so I had to use a drill.
Reviewed in the United States on November 21, 2025 by Luke

  • Quality
Great value
Reviewed in the United States on February 24, 2026 by Mr. G

  • For my use..
This was ordered as a Gift for myself. It works Just Fine comes in a nice case. it arrived on time and in good Shape.
Reviewed in the United States on February 28, 2026 by david allen

  • Good quality bits
Super sharp bits and chew through wood quickly. I use them currently almost exclusively for building birdhouses which I make a lot of in the spring time. Might seem like an insignificant project but these bits chew through cedar better than bits I have used in the past. Leaves and very nice clean hole especially if you use a sacrificial piece behind it. ... show more
Reviewed in the United States on June 22, 2025 by Matthew Matthew

  • Good quality
Great price
Reviewed in the United States on December 6, 2025 by Michael

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