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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🛠️ Cut Above the Rest!

USER FRIENDLY - Easy handling means you can focus on creativity, not complications.
DURABLE DESIGN - Crafted for longevity, these blades are built to withstand the test of time.
COMPREHENSIVE PACK - Includes 18 blades, ensuring you’re always ready for your next project.
PRECISION CUTTING POWER - Experience flawless cuts with our premium pin end blades.
VERSATILE COMPATIBILITY - Perfectly designed for machines requiring 5" pinned blades.

Product Description For machines that require 5" Pinned blades. Perfect for Sears Craftsman, Penn state, Delta, Ryobi, all 15" And 16" Imported scroll saws. Contains 6 each of 42401, 41101, & 41201. Blister carded assortment. 18 Pack contains 6 each of 42401, 41101, & 41201 for machines that require 5" Pinned blades Perfect for Sears Craftsman, Penn state, Delta, Ryobi, all 15" And 16" Imported scroll saws # 42401 - 0. 070 wide, 0. 010" Thick, 18. 5 TPI & cuts in wood, plastic and extremely thin cuts in material 3/32" To 1/2" Thick # 41101 - 0. 100 wide, 0. 018" Thick, 15 TPI & Wallboard, Pressed wood, wood, felt, paper, Bone, lead # 41201 - 0. 100 wide, 0. 018" Thick, 10 TPI & for hard/soft wood and plastic blister carded assortment. Set Contains: 1 x 18 assted pinned scroll blades

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Manufacturer	Blackstone Industries, LLC
Part number	SA4950
Item Weight	22.7 g
Product Dimensions	8.89 x 21.59 x 2.54 cm; 22.68 g
Item model number	FR49501
Size	Blade
Color	18 Pack
Style	Basic
Finish	Pin End
Material	Metal
Pattern	Saw Blade
Item thickness	0.5 Inches
Item Package Quantity	1
Number Of Pieces	18
Number of Handles	1
Included components	Olson Saw FR49501 Pin End Scroll Saw Blade
Batteries Included?	No
Batteries Required?	No

OLSON SAW FR49501 Pin End Scroll Saw Blade,18 Pack

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