Blue Spot Tools 5 Piece 300mm (12") 24TPI HSS Bi Metal Hacksaw Blades 22212

Blue Spot Tools 5 Piece 300mm (12") 24TPI HSS Bi Metal Hacksaw Blades 22212

MPN: 22212

Barcode: 5028734222128

Weight: 0.97kg

Overview:

The Blue Spot Tools 5 Piece 24TPI HSS bi metal hacksaw blades are manufactured from heat treated high speed carbon steel for increased hardness and cutting performance. Each blade measures 300mm (12") in length and fits most standard hacksaw frames in that size.

The 24 HSS teeth per inch cut through mild steel, aluminium, copper, brass and plastics. Bi metal construction joins a hard HSS cutting edge to a tougher, more flexible body. This combination reduces the risk of the blade snapping under stress.

Key Features and Benefits

• Heat Treated Construction: Delivers increased hardness and cutting performance over untreated steel blades.
• HSS Cutting Teeth: High speed steel teeth hold their edge longer, reducing how often you need to change the blade.
• Bi Metal Design: A hard HSS edge bonded to a flexible alloy body resists snapping under cutting stress.
• Multi-Material Cutting: Handles mild steel, aluminium, copper, brass, non-ferrous metals and plastics.
• Fine 24 TPI Pitch: Reduces tearing on thin-walled sections and produces a cleaner cut through sheet and tube.
• Universal Frame Compatibility: Fits most standard 300mm (12") hacksaw frames, making blade replacement straightforward.
• Extended Blade Life: The combination of heat treatment and HSS construction means each blade works harder before wearing out.
• Reduced Breakage Risk: The bi metal body flexes under lateral load rather than snapping, giving you more consistent performance.
• Pack of 5: Keeps spare blades within reach so a worn blade does not stop the job.

Specs & Attributes

• Blade Length: 300mm (12")
• Teeth Per Inch (TPI): 24
• Blade Material: Heat treated high speed carbon steel (HSS)
• Blade Type: Bi metal
• Compatible Frame Size: 300mm (12")
• Pack Quantity: 5 blades
• Weight: 0.97kg

Typical Applications

• Cutting mild steel tube, rod and flat section
• Cutting aluminium profiles and sheet
• Cutting copper and brass pipe
• Cutting non-ferrous metal components
• Cutting plastic pipe and sheet
• General workshop metalwork and fabrication
• Plumbing and pipework

How to Use

• Fit the Blade: Insert the blade into a 300mm (12") hacksaw frame with the teeth pointing forward.

• Tension the Blade: Tighten the wing nut or tensioning screw until the blade sits firm and straight in the frame.

• Mark Your Cut: Use a marker or scribe to mark the cutting line on the workpiece before starting.

• Start Slowly: Begin with a few short, light strokes to create a shallow groove and guide the blade into position.

• Cut with Full Strokes: Apply steady, full-length strokes to make the most of the blade teeth across their full span.

• Replace When Worn: Fit a fresh blade if cutting becomes laboured or the blade wanders from the marked line.

Frequently Asked Questions (FAQs)

• What is the difference between bi metal and carbon steel hacksaw blades?
  Bi metal blades bond a high speed steel cutting edge to a more flexible alloy steel body. This makes them less prone to snapping under cutting stress than standard carbon steel blades. Carbon steel blades cost less upfront but are more brittle under flex.

• What TPI should I use for cutting thin metal?
  Higher TPI values suit thinner materials. A 24 TPI blade works well for thin-walled tube, small section aluminium and plastic. For thicker steel, a lower TPI - such as 14 or 18 - removes material faster.

• Can HSS bi metal hacksaw blades cut stainless steel?
  Yes, but progress is slower than with mild steel. Applying cutting fluid during the cut helps manage heat build-up and extends the working life of the blade.

• How do I know when to replace a hacksaw blade?
  Replace the blade when cutting requires noticeably more effort, when the blade drifts from the line, or when the teeth appear flat rather than pointed under close inspection.

• Do hacksaw blades fit all hacksaw frames?
  Most hacksaw blades use a standard pin-hole fixing, and a 300mm (12") blade fits the majority of frames sold in that size. Always confirm your frame accepts a 300mm blade before purchasing.

Summary

Blue Spot Tools 5 Piece 300mm (12") 24TPI HSS Bi Metal Hacksaw Blades give you a capable set of cutting blades for metal, non-ferrous materials and plastics. Heat treated high speed steel teeth paired with a bi metal body keep performance up and breakage risk down. Five blades per pack and a manufacturer's lifetime guarantee make these a sound choice for workshop or site use.