I am truly a beginner { wen 16" model #3920}. i am reading/video/hearing a lot on people calling the blades by numbers. #5 #7 #9 why?

The number refers to the thickness and width of the blade from front to back. The higher the number, the thicker and heavier the blade. A #9 blade, for instance is much thicker (and stronger) than a #4 blade. Thick, heavy blades typically cut faster and last longer than fine, precision blades cutting the same material. The drawback is that they cannot accomplish very tight curves well, and it is impossible to make a 180° turn without leaving a massive hole where you did it. A #3 or #4 can accomplish this easily, but if you try to cut a piece of 3/4" hardwood, they will last about 10 seconds before breaking! I hope this helps a bit. I've been scrolling for about 20 years off and on, and it's much easier to demonstrate this than to explain it without visual aids.

Yes. My son has a craftsman and these are what he uses.

will these work on an Delta 15" model 40 150 scroll saw?

I have not use it on DELTA but you can see the size of existing blade, if the size of existing blade is 5 inch then you can buy this and it should work on delta then. Apart from that, Delta should support Pin end blades. (which I am think it should)

Will these blades work in a Delta 40-694 Scroll Saw?

I do not have that model scroll saw but the saw blades are standard pin end blades and if the Delta 40-694 takes pin end blades I would think that they would work.

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OLSON SAW FR49501 Pin End Scroll Saw Blade,18 Pack

Product ID: 266395504

Details

Brand
Olson
Colour
18 Pack
Material
Metal
Number of teeth
20
Product dimensions
8.9L x 21.6W

🌲Cuts hard & soft wood + plastic

🛠️18 precision blades included

🇺🇸Made in USA quality

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Description

🔪 Slice through your projects with precision and pride!

VERSATILE 18 PACK - A curated mix of 6 FR42401, SC41101 & SC41201 blades to tackle every project
EFFORTLESS HANDLING - Easy to install and use, designed for professionals and hobbyists who demand efficiency
PIN END COMPATIBILITY - Perfect fit for 5" pinned scroll saws like Delta & Ryobi for seamless installation
PRECISION CUTTING POWER - 20 teeth per inch for smooth, clean cuts on wood and plastic thicker than 1/8"
DURABLE AMERICAN CRAFTSMANSHIP - Proudly made in the USA ensuring long-lasting, reliable performance

The OLSON SAW FR49501 is an 18-pack of high-quality, pin-end scroll saw blades made in the USA. Compatible with most 15" and 16" scroll saws requiring 5" pinned blades, this set includes three blade types optimized for cutting hard and soft wood as well as plastic. With 20 teeth per inch, these durable blades deliver smooth, precise cuts, making them ideal for detailed woodworking and modeling projects.

Specifications

ASIN	B000G33Q6Q
ASIN	B000G33Q6Q
Best Sellers Rank	#65,630 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4 in Scroll Saw Blades
Brand Name	Olson
Color	18 Pack
Compatible Material	Metal
Customer Reviews	4.6 4.6 out of 5 stars (4,742)
Customer reviews	4.6 4.6 out of 5 stars (4,742)
Date First Available	7 August 2012
Department	Unisex-Adult
Global Trade Identification Number	00012373495017
Included Components	Olson Saw FR49501 Pin End Scroll Saw Blade
Is Discontinued By Manufacturer	No
Item Dimensions L x W	8.9L x 21.6W centimeters
Item Thickness	0.5 Inches
Item Type Name	Olson Saw FR49501 Pin End Scroll Saw Blade
Item Weight	23 g
Item model number	FR49501
Manufacturer	Shesto Ltd
Manufacturer	Shesto Ltd
Material Type	Metal
Model	FR49501
Number of Teeth	20
Part Number	SA4950
Product Dimensions	8.89 x 21.59 x 2.54 cm; 22.68 g
Set Name	18 Pin Spiral Blades
Style Name	Basic
UPC	012373495017

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€ 45.09

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In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

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