How should i think about tpi? is 24 or 32 better for cutting stainless bolts?

This article is informative; http://diyhousehelp.com/tools/choosing-the-correct-hacksaw-blade-tooth-count

How long will one of these blades last on average if you use it an average of once or twice a week for small projects?

Depends on the material. Copper and aluminum are soft metals. The blade is going to last a long time. Stainless steel and harden metals not as long. I use mine on all sorts of different materials and I get at least a year out of each blade.

Starrett green stripe vs Starrett red stripe blades? What is the difference?

I had no clue, so I googled it & this is what I found. Greenstripe® These hardened-milled tooth blades are shatter resistant and are the best blade for interrupted cuts or when the blade is subject to excessive stresses. Redstripe® Constructed of uniformly hardened high speed steel, these blades maintain their cutting edge on the most difficult to cut materials, held securely. Bluestripe® These precision ground tooth blades have a patented solid-state diffusion process which produces the industry's most advanced bi-metal hand hacksaw.

How well would this cut an aluminum hand guard on a paintball marker?

I've cut through steel with these blades. As long as the metal on the hand guard is not thinner than 1/32", and the correct technique is used, there should be no problem.

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Starrett Bi-Metal Unique HSS Safe-Flex Hand Hacksaw Blade - Ideal for Contractors and Tradesmen - 12" Length, 1/2" Width, 0.024" Thickness, 32 TPI - 2-Pack - KBS1232-2

Starrett Bi-Metal Unique HSS Safe-Flex Hand Hacksaw Blade - Ideal for Contractors and Tradesmen - 12" Length, 1/2" Width, 0.024" Thickness, 32 TPI - 2-Pack - KBS1232-2

Product ID: 764258

Details

Brand
Starrett
Color
Yellow
Global Trade Identification Number
Item Thickness
0.03 Inches
Item Weight
40 Grams
Material
Metal

📏12" length for versatile reach

⚙️32 TPI for precision cutting

🛡️Safe-Flex bi-metal for durability & flexibility

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฿998

Duties & taxes included

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Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Cut with confidence, flex with finesse — the pro’s secret weapon!

PRECISION MEETS POWER - 32 teeth per inch deliver clean, accurate cuts every time.
PRO READY CONVENIENCE - User-friendly blades perfect for contractors and DIY pros alike.
VERSATILE CUTTING CHAMPION - Effortlessly slices through mild steel, copper, brass, and aluminum.
TRUSTED LEGACY OF EXCELLENCE - Starrett quality since 1880 ensures unmatched reliability on every job.
FLEXIBILITY WITHOUT COMPROMISE - Safe-Flex bi-metal design bends, resists breakage in tight spots.

The Starrett Bi-Metal Unique HSS Safe-Flex Hand Hacksaw Blade is a 12-inch, 32 TPI blade engineered for precision and durability. Featuring a hardened cutting edge with a flexible back, it excels in cutting mild steel, copper, brass, and aluminum, especially in cramped or challenging conditions. Trusted by professionals since 1880, this 2-pack offers versatile, reliable performance for contractors and tradesmen seeking effortless, clean cuts.

Specifications

ASIN	B000FCINVQ
Best Sellers Rank	#29,593 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Hacksaw Blades
Brand Name	Starrett
Color	Yellow
Compatible Material	Metal
Customer Reviews	4.7 4.7 out of 5 stars (1,713)
Global Trade Identification Number	07891265403384
Item Dimensions L x W	11.81"L x 1.8"W
Item Thickness	0.03 Inches
Item Weight	40 Grams
Manufacturer	Starrett
Material Type	Metal
Model	KBS1232-2
Number of Teeth	32
Part Number	KBS1232-2
Set Name	Starrett Bi-Metal Unique HSS Safe-Flex Hand Hacksaw Blade 2-Pack
Style Name	2 Pack
Unit Count	2.0 Count

Reviews

M**Z

Good Blades...

Perfect fit in 2 hacksaws and does the job as it should.

8.04.2026

E**N

saw blades

good lasting blade.

28.02.2026

J**N

Amazing blades! Holding up well!

I've been using these to cut 1/8" 6061 aluminum. Going through it very well, leaves a nice finish when done. Haven't had to replace the blade yet after several cuts. Probably best to lubricate with some WD-40 or equivalent (WD-40 is not a lubricant in itself...but for quick jobs, it will provide temporary 'lube' qualities and help keep the metal from gumming up in the teeth of the blade. Other people use bees wax blocks and so on...research the best for you). Any 12" hacksaw will fit these blades, but pictured is STANLEY Hacksaw w/Mini Hacksaw - Countertop Model 20-036M which I got from one of the bigger hardware stores. I don't wholly recommend it and you can read my review for it there if you want. If you're going to buy a hacksaw with a blade storage area, there are better options.

11.09.2017

R**.

Works good.

Cuts great, fast and easy. Would be 5 stars if the paint didn't make such a mess, yellow paint all through the cuts, on the vise, on bench... Will probably buy again, but it would be great if they would loose the paint.

23.12.2018

B**D

Better than anything in a Big Box

These are the best hacksaw blades I’ve ever used. Whether sizing piano hinges, fitting all-thread, or removing stuck toilet hold down bolts, the blades allow me to get the job done quickly.

28.12.2025

D**S

Good blades

Look great, paper bag used for shipping was full of holes, surprised product was still inside uponarrrival. Starrett are very good saw blades.

1.01.2026

P**K

Quality blades

Quality blades, good price.

25.06.2025

J**J

Priced the same or less as most other brands but outperforms any blade I've used

Works great, good price, cuts through angle iron like it's nothing. For the first use of a new blade it'll leave some yellow paint residue behind but that's not a big deal

20.09.2024

J**R

Ótimo produto

2.04.2026

J**R

Es de las mejores marcas en consumibles de corte que hay. Este blister en concreto aún no lo he abierto pero he usado esta misma hoja y aguanta mucho el corte incluso con materiales acerados. Si estas me salen rana editaré la opinion, no lo dudes.

4.12.2025

C**O

If you are going to cut Carbon Steerer's or seat posts, make sure to order extras. Carbon is very harsh on these blades and make sure to use fast light movements on the hacksaw handle or else the blade will dull very fast if you go to slow.

15.06.2021

D**.

Best hacksaw blades. As an engineer i use nothing else

9.01.2026

A**O

Cumple con lo prometido

17.07.2019

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