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Product Details

Type X Four flute counterbores are designed to cut faster and deeper in hardwoods than Fuller B counterbores. Adaptable to suit high or low speed spindles and hardened for long service. Cuts a smooth deep hole fast and stays sharp longer. Stop collars not recommended as these counterbores were designed for deep cutting applications.

Tech Specs
Type X Stock NumberCutting DiameterOverall LengthDrill Size
X3L5/813/16
X37L5/817/32
X34L5/811/4
X317L5/8117/64
X39L5/819/32
X310L5/81-1/85/16
X43L3/413/16
X47L3/417/32
X4L3/411/4
X49L3/419/32
X5L3/41-1/85/16
X511L3/41-1/811/32
X56LK3/41-1/43/8
X64L7/81-1/81/4
X610L7/81-1/21/2
X6L7/81-1/43/8
X67L7/81-3/87/16
X68L7/81-1/21/2
X74L11-1/81/4
X75L11-1/85/16
X76L11-1/43/8
X7L11-3/87/16
X78L11-1/21/2
X85L1-1/81-1/85/16
X86L1-1/81-1/43/8
X87L1-1/81-3/87/16
X8L1-1/81-1/21/2
X89L1-1/81-5/89/16
X96L1-1/41-1/43/8
X97L1-1/41-3/87/16
X98L1-1/41-1/21/2
X9L1-1/41-5/89/16
X910L1-1/425/8
X912L1-1/42-1/43/4
X106L1-3/81-3/83/8
X107L1-3/81-3/87/16
X108L1-3/81-1/21/2
X109L1-3/81-5/89/16
X10L1-3/825/8
X1012L1-3/82-1/43/4
X126L1-1/21-1/23/8
X127L1-1/21-1/27/16
X128L1-1/21-1/21/2
X129L1-1/21-5/89/16
X1210L1-1/225/8
X12L1-1/22-1/43/4
Info & Guides

Cutting tools may shatter when broken. The wearing of eye protection is strongly advised in the vicinity of their use.

Reviews for Type X Counterbores

6 of 6 Reviews

March 5, 2020

Works
By MacDuff from VA

Verified Purchase

Works well though the spurs are longer than I would like. The flat counterbore has a good deal of wood removed around it making the purchase somewhat weak. But well made and can be modified.

Bottom Line Yes, I would recommend to a friend

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March 30, 2018

highly recomennded product
By tommie from summit ms

will reorder as needed

Bottom Line Yes, I would recommend to a friend

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April 11, 2016

Great Equipment
By HVR from Paola, KS

Verified Purchase

We manufacture Apple Cider Presses in quantity. Our drills and bits are used daily and these from Jamestown are very good quality.

Bottom Line Yes, I would recommend to a friend

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October 11, 2015

Works well bur dulls out very quickly even in soft wood
By Brink from Texas

Verified Purchase

It worked well for about 7 holes, after that, it would hardly cut in even with great pressure. I was boring holes in western red cedar. For the price, i was hoping it would hold an edge much longer


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May 18, 2012

Excellent Counterbore
By Dave from Paola, KS

The counterbore was received in a timely manner and in great condition. It fits over the drill bit just a expected and has already drilled many holes just since yesterday.

Bottom Line Yes, I would recommend to a friend

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May 5, 2012

Great Tool!
By Cpmtbiker from Longview, Texas

Exactly what I needed to drill a 1/4 inch hole with a 1 inch by 1 inch deep counterbore

Bottom Line Yes, I would recommend to a friend

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