Where are the specs on the bit? A history of the company doesnt help me decide if this bit meets what i am looking for?

Please complain to Amazon about the description - they have the complete description but their algorithms thinks this is better because it has more words. 🙄. This bit is 1/4" diameter x 1" cutting length x 1/4" shank x 2-1/2" long - upshear. For a complete description of any Whiteside product and a picture, please visit our eoasaw website. Please advise how we may be of assistance. Thanks Thom

will this bit cut a 1/4" recess in a 3/4" red oak board? the recess has to be 3" x 4".

This is my bit of choice. This bit makes a good clean cut. So you are cutting a 3" x 4" 0.25" deep?

does this bit cut acrylic like Plexiglas and leave a good edge?

This bit will cut acrylic, however a o-flute bit would be better suited. Any bit you use will probably still leave some visible signs of cutting, the edge can then be polished or some people use a torch to smooth the finish. The key is getting the correct chipload and making sure the part is held firmly. You are welcome to download my free CNC manual and chipload calculator from the technical section of our eoasaw website - the principles apply to any cutting situation. Please advise how I may be of further assistance. Thanks, Thom

Would this bit be used to cut cirlces in plywood?

Whiteside carbide bit is very high quality. Good clean cuts in plywood. Yes I use this bit to cut circles.

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Whiteside RU2100 Spiral Upcut Straight Router Bit: 1/4 Inch Cutting Diameter, 1/4 Inch Shank, 1 Inch Cutting Length

Whiteside RU2100 Spiral Upcut Straight Router Bit: 1/4 Inch Cutting Diameter, 1/4 Inch Shank, 1 Inch Cutting Length

Product ID: 7425170

Details

Brand
Whiteside
Cutting Length
1 Inches
Item Weight
27.22 g
Material
Carbide
Size
1/4 inch 1

📏1" cutting length for deep, clean cuts

🔄Upcut spiral for rapid chip removal

⚙️1/4" solid carbide precision

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$49.52

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Details

Brand
Whiteside
Cutting Length
1 Inches
Item Weight
27.22 g

Description

⚡ Cut sharper, faster, cleaner — join the elite woodworking pros!

DEEP CLEAN CUTS - 1-inch cutting length lets you plunge deeper with crisp, professional edges on hardwoods and plastics.
PRECISION CARBIDE POWER - Solid carbide construction ensures unmatched durability and razor-sharp cuts every time.
TRUSTED INDUSTRY LEADER - Whiteside’s 30+ years of innovation and top-rated performance make this bit a must-have for pros.
EFFORTLESS CHIP EVACUATION - Upcut spiral design rapidly removes chips, keeping your workspace clean and cuts flawless.
VERSATILE WOODWORKING MASTERY - Perfect for grooves, dados, slots, and pockets across hardwood, softwood, plywood, MDF, and plastics.

The Whiteside RU2100 is a 1/4" solid carbide upcut spiral router bit featuring a 1" cutting length and 1/4" shank, engineered for smooth, rapid chip removal and precision woodworking. Ideal for deep cuts in hardwoods, softwoods, plywood, MDF, and plastics, it delivers clean edges and superior durability, backed by Whiteside’s 30+ years of industry-leading quality and innovation.

Specifications

ASIN	B000K2BGNS
Best Sellers Rank	#18,405 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4 in Spiral Router Bits
Brand	Whiteside Router Bits
Brand Name	Whiteside Router Bits
Customer Reviews	4.8 out of 5 stars 2,235 Reviews
Cut Type	Carbide-Tipped Cut, Up-Cut
Cutting Diameter	0.25 Inches
Cutting Length	1 Inches
Global Trade Identification Number	00844278005073
Item Diameter	0.25 Inches
Item Weight	27.22 g
Manufacturer	Whiteside
Material	Carbide
Material Type	Carbide
Model	RU2100
Number of Flutes	2
Part Number	RU2100
Size	1/4 inch diameter, 1 inch length
Size Name	1/4 inch diameter, 1 inch length
UPC	844278005073 732454888964 785533283594
Unit Count	1.0 Count

Reviews

T**Y

7.03.2026

A**R

23.01.2026

E**E

25.03.2026

K**P

30.07.2025

W**2

30.10.2025

A**7

2.09.2025

G**C

18.04.2026

A**R

2.08.2025

A**N

8.06.2024

C**N

22.03.2026

H**.

19.12.2025

P**R

5.05.2025

S**Y

24.12.2025

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