DeWalt 12 Inch Bi-Metal Hacksaw Blade 18 TPI 2 Pack Metal Cutting
DeWalt 12 Inch Bi-Metal Hacksaw Blade 18 TPI 2 Pack Metal Cutting
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DeWalt 12 Inch Bi-Metal Hacksaw Blades — 18 TPI 2 Pack
Bi-Metal Construction | 18 TPI General Purpose | Cuts Gutters, Downspouts, Steel | 2 Pack | Fits Standard Hacksaws
Bi-Metal Construction Outlasts Standard Carbon Blades 10 to 1
Gutter installation and cleaning contractors go through hacksaw blades constantly — cutting aluminum gutters, sizing downspouts, trimming steel hangers, and removing corroded fasteners. Standard carbon steel blades dull quickly on hard materials and snap under the pressure of professional daily use. DeWalt 12 inch bi-metal hacksaw blades — also called metal cutting blades, replacement hacksaw blades, high speed steel blades, HSS hacksaw blades, and contractor hacksaw blades — combine a flexible alloy steel body with high-speed steel teeth that stay sharp through hundreds of cuts. The bi-metal construction allows the blade to flex without breaking while maintaining the tooth hardness needed to cut through galvanized steel, stainless steel, aluminum, copper, brass, and hardened fasteners. The 18 TPI general purpose tooth pattern delivers versatile cutting performance on the range of materials gutter contractors work with daily — from thin aluminum gutters to thicker steel hangers and straps. Available in contractor 2-packs, these blades fit all standard 12-inch hacksaw frames from DeWalt, Milwaukee, LENOX, Stanley, and other manufacturers.
Bi-Metal Construction | 18 TPI General Purpose | Fits All 12" Hacksaws | 2 Pack | Professional Grade
Key Benefits at a Glance
HSS teeth on flexible body — stays sharp, resists breakage.
Versatile tooth count handles both thin and medium materials.
Fits DeWalt, Milwaukee, LENOX, Stanley, and all standard frames.
Keep a spare blade on hand for uninterrupted work.
Why Gutter Contractors Choose DeWalt Bi-Metal Blades
Every gutter installation involves cutting — trimming gutter sections to length, fitting corners, sizing downspout runs, cutting hanger straps, and removing old fasteners. The hacksaw blade is the consumable that takes the abuse, and contractors who use cheap carbon steel blades constantly stop to change dulled or broken blades. DeWalt 12 inch bi-metal hacksaw blades — also referred to as metal cutting blades, replacement hacksaw blades, high speed steel blades, HSS hacksaw blades, and contractor hacksaw blades — are engineered specifically for the demands of professional trade work. The bi-metal construction bonds high-speed steel cutting teeth to a flexible alloy steel body, creating a blade that stays sharp through prolonged cutting while flexing instead of snapping under pressure. This combination of hardness and flexibility is what separates professional bi-metal blades from disposable carbon steel alternatives.
The 18 TPI (teeth per inch) configuration is the general purpose standard that handles the widest range of materials gutter contractors encounter. Unlike finer 24 TPI blades designed only for thin materials, or coarser 14 TPI blades meant for thick stock, 18 TPI provides versatility — cutting aluminum gutters, steel hangers, copper components, downspout sections, and threaded rod with equal competence. For contractors who need one blade that handles most cutting tasks without switching, 18 TPI is the practical choice. The teeth are set in an alternating pattern that creates a kerf slightly wider than the blade body, preventing binding and allowing chips to clear efficiently.
DeWalt bi-metal blades fit all standard 12-inch hacksaw frames including DeWalt, Milwaukee, LENOX, Stanley, Craftsman, and other brands. The standard pin hole spacing ensures secure mounting in any quality hacksaw. GutterAll supplies DeWalt blades to gutter contractors, roofing professionals, HVAC installers, plumbers, and construction crews throughout the Pacific Northwest and nationally from the Damascus, Oregon location. Available for in-store pickup, local delivery in the Portland metro area, or shipping to all 50 states.
| Product | Key Specifications |
|---|---|
| DeWalt 12" Bi-Metal Hacksaw Blade | 18 TPI | Bi-Metal HSS | 12" Length | Universal Fit | 2 Pack |
Bi-metal blades outlast carbon 10 to 1. Keep cutting, not changing blades.
Start a chat now or email sales@gutterall.com for contractor pricing.
Technical Explanation — Why Bi-Metal Blades Outperform Carbon Steel
Standard carbon steel hacksaw blades are made from a single material throughout — the same steel forms both the body and the teeth. This creates a fundamental problem: if the steel is hard enough to maintain sharp teeth, it becomes brittle and snaps under flexing; if it is flexible enough to resist breaking, the teeth dull quickly. Bi-metal construction solves this problem by using two different metals bonded together. The blade body is made from flexible alloy steel that can bend without breaking, while the cutting edge is high-speed steel (HSS) that maintains hardness at high temperatures generated during cutting. The HSS teeth stay sharp through extended cutting sessions and resist the wear that dulls carbon steel blades after just a few cuts on hard materials. The result is a blade that lasts 10 times longer than carbon steel in professional use while maintaining cutting performance throughout its life. For contractors who measure productivity in cuts per hour rather than blades per day, bi-metal blades pay for their higher cost many times over in reduced downtime and consistent cutting performance.
Work Applications — Where DeWalt Bi-Metal Blades Deliver Value
DeWalt bi-metal hacksaw blades address five primary cutting applications for gutter contractors and construction professionals:
| Application | The Challenge | Why It Helps |
|---|---|---|
| Cutting Aluminum Gutters | Soft aluminum clogs teeth and causes blade grab | 18 TPI clears chips efficiently while cutting cleanly |
| Cutting Steel Hangers | Galvanized steel dulls carbon blades quickly | HSS teeth maintain sharpness through steel cuts |
| Sizing Downspouts | Thin-wall tubing requires controlled cutting | 18 TPI provides smooth cuts on thin materials |
| Cutting Copper Components | Copper work hardens and damages dull blades | Bi-metal construction handles copper efficiently |
| Removing Corroded Fasteners | Rusted bolts and screws are hardened and abrasive | HSS teeth cut through hardened fasteners |
TPI Selection Guide — When to Use 18 TPI Blades
| Material | Use 18 TPI? | Why |
|---|---|---|
| Aluminum Gutters (K-style, half-round) | YES | Good chip clearance prevents clogging on soft aluminum |
| Aluminum Downspouts | YES | Versatile for both round and rectangular sections |
| Steel Hanger Straps | YES | Handles galvanized and stainless steel effectively |
| Copper Gutters | YES | Good balance of speed and edge quality |
| Threaded Rod and Bolts | YES | Multiple teeth engaged on small diameters |
| Very Thin Sheet Metal (under 1/16") | 24 TPI Better | Finer teeth prevent catching on ultra-thin material |
HSS teeth. Flexible body. Built for contractors who cut all day.
Start a chat for fastest response or email sales@gutterall.com
Bi-Metal vs. Carbon Steel Hacksaw Blades
Understanding the differences between blade types helps contractors make informed purchasing decisions:
DeWalt Bi-Metal (This Product)
- HSS teeth bonded to flexible body
- 10x longer life than carbon steel
- Stays sharp through hard materials
- Flexes without snapping
- Best for: Professional daily use
Standard Carbon Steel Blade
- Single material throughout
- Dulls quickly on hard materials
- Brittle — breaks under flex
- Lower initial cost
- Best for: Occasional light-duty use
Tungsten Carbide Blade
- Carbide grit edge coating
- Cuts hardened materials, tile, glass
- Does not produce clean metal cuts
- Higher cost
- Best for: Specialty materials only
Key Features and User Benefits
| Feature | Technical Detail | User Benefit |
|---|---|---|
| Bi-Metal Construction | HSS teeth electron-welded to flexible alloy body | Stays sharp 10x longer, resists breakage |
| 18 TPI Tooth Count | 18 teeth per inch general purpose configuration | Versatile cutting on thin and medium materials |
| 12 Inch Standard Length | Standard 12" blade length with 1/2" pin spacing | Fits all standard hacksaw frames |
| Set Tooth Pattern | Alternating tooth set creates clearance kerf | Prevents binding, allows chips to clear |
| 2 Pack Quantity | Two blades per package | Spare blade ready when needed |
| DeWalt Quality | Professional-grade manufacturing standards | Consistent quality backed by DeWalt reputation |
DeWalt 12 inch bi-metal hacksaw blades — also known as metal cutting blades, replacement hacksaw blades, high speed steel blades, HSS hacksaw blades, and contractor hacksaw blades — provide the cutting performance gutter contractors and construction professionals demand for daily job site use. The bi-metal construction bonds high-speed steel cutting teeth to a flexible alloy steel body, creating blades that stay sharp through hundreds of cuts while flexing instead of breaking under pressure. The 18 TPI general purpose tooth configuration delivers versatile cutting on the range of materials gutter contractors encounter — aluminum gutters, downspouts, steel hangers, copper components, and fasteners. Standard 12-inch length fits all common hacksaw frames from DeWalt, Milwaukee, LENOX, Stanley, and other manufacturers. Available in 2-packs. GutterAll supplies DeWalt hacksaw blades to gutter contractors, roofing professionals, HVAC installers, plumbers, and construction crews throughout the Pacific Northwest and nationally. Contact sales@gutterall.com for contractor pricing. Available for in-store pickup at 19759 SE Sunnyside Rd, Damascus, OR 97089, local delivery in the Portland metro area, or shipping to all 50 states. Monday through Friday 7am to 4pm, Saturday 9am to 12pm PST.
Why Contractors Choose DeWalt Bi-Metal Blades:
- Bi-Metal Construction: HSS teeth on flexible body outlasts carbon 10 to 1
- 18 TPI General Purpose: Versatile cutting on thin and medium materials
- Cuts Aluminum Gutters: Clean cuts through K-style and half-round
- Cuts Steel Hangers: HSS teeth handle galvanized and stainless steel
- Cuts Copper: Clean edges on copper gutters and components
- Universal 12" Fit: Works with DeWalt, Milwaukee, LENOX, Stanley frames
- Flex Without Breaking: Alloy steel body bends instead of snapping
- Heat Resistant: HSS maintains hardness at cutting temperatures
- 2 Pack: Spare blade ready when needed on the job
- Efficient Chip Clearance: Set tooth pattern prevents binding
- Cuts Fasteners: HSS handles hardened bolts and screws
- Cuts Downspouts: Round and rectangular sections
- Consistent Quality: DeWalt professional manufacturing standards
- Extended Blade Life: Fewer blade changes, more cutting time
- Cost Effective: Longer life offsets higher per-blade cost
Product Specifications
| Product Name | DeWalt 12 Inch Bi-Metal Hacksaw Blade |
| Manufacturer | DeWalt (Stanley Black and Decker) |
| Product Type | Bi-Metal Hacksaw Blade / Metal Cutting Blade / Replacement Hacksaw Blade |
| Blade Construction | Bi-Metal (HSS teeth welded to flexible alloy steel body) |
| Blade Length | 12 inches (305mm) |
| Teeth Per Inch (TPI) | 18 TPI (general purpose) |
| Blade Width | 1/2 inch (12.7mm) |
| Pin Hole Spacing | Standard 1/2" spacing — fits all standard hacksaw frames |
| Compatible Hacksaws | DeWalt, Milwaukee, LENOX, Stanley, Craftsman, and all standard 12" frames |
| Cuts Materials | Aluminum, Galvanized Steel, Stainless Steel, Copper, Brass, PVC, Threaded Rod |
| Gutter Applications | Gutters, Downspouts, Hangers, Straps, Elbows, Fasteners |
| Package Quantity | 2 Pack |
| Expected Service Life | 10x longer than carbon steel blades. Typical professional use: 100-300+ cuts per blade depending on material hardness and cutting technique. |
| Storage | Store in dry location. Keep in original packaging or blade case to protect teeth. |
| Country of Origin | Designed in USA (DeWalt is a Stanley Black and Decker brand) |
| Fulfillment Options | Nationwide Shipping (all 50 states) | Local Delivery (Portland metro) | In-Store Pickup (Damascus, OR) |
Who Uses DeWalt Bi-Metal Hacksaw Blades
Gutter Installation Contractors (Primary)
- Cutting aluminum gutter sections to length
- Sizing downspout runs and elbows
- Trimming steel and aluminum hangers
- Cutting copper gutter components
- Removing corroded fasteners
- Field modifications and adjustments
Why it matters: Bi-metal blades stay sharp through an entire day of cutting, eliminating constant blade changes that slow down gutter installations.
General Contractors (Primary)
- Metal stud and framing cuts
- Cutting threaded rod and hardware
- EMT conduit and thin pipe
- HVAC duct modification
- Plumbing pipe cutting
- Demolition and removal work
Why it matters: Universal 12-inch fit means one blade type works across multiple hacksaw brands on the job site.
DIY Homeowners (Secondary)
- Home repair projects
- Gutter maintenance and repairs
- Cutting metal hardware
- Plumbing repairs
- Automotive and mechanical work
- General household cutting tasks
Why it matters: Professional-grade blades that outlast hardware store carbon blades make DIY projects faster and more satisfying.
Usage Guide — Getting Maximum Life from Bi-Metal Blades
- Install with teeth facing forward: Teeth must point away from the handle — hacksaws cut on the push stroke. Backwards installation causes rapid dulling.
- Tension the blade properly: Use the hacksaw's tensioning mechanism to achieve firm tension. A loose blade wanders and wears unevenly.
- Secure the workpiece: Clamp or firmly hold the material. Movement during cutting causes blade damage and inaccurate cuts.
- Start cuts slowly: Begin with light pressure and short strokes to establish a groove before applying full cutting strokes.
- Use the full blade length: Long, smooth strokes use all teeth evenly. Short strokes wear only the middle section.
- Apply pressure on push stroke only: Press forward during the cutting stroke, lift slightly on the return. Cutting on both strokes dulls teeth faster.
- Let the blade do the work: Excessive downward pressure causes binding and premature wear. The blade cuts most efficiently with moderate pressure.
- Use cutting fluid on steel: A few drops of cutting oil or WD-40 reduces friction and heat on steel cuts, extending blade life.
- Clean aluminum buildup: Soft aluminum can clog teeth. Wire brush the blade occasionally when cutting aluminum.
- Replace when dull: When cutting requires noticeably more effort, the blade is dull. Continuing to use a dull blade wastes time and produces poor cuts.
DeWalt Quality. Bi-Metal Construction. Contractor Grade.
Start a chat for fastest response or email sales@gutterall.com.
Mon-Fri 7am-4pm | Sat 9am-12pm PST | (503) 850-6784
Frequently Asked Questions
What is the difference between bi-metal and carbon steel blades? +
What hacksaw frames do these blades fit? +
When should I use 18 TPI vs 24 TPI blades? +
What is the return policy? +
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Safety Notice
HACKSAW BLADE SAFETY. Always wear safety glasses when using hacksaw blades — metal chips and blade fragments can cause serious eye injury. Wear work gloves to protect hands from sharp blade teeth and cut material edges. Ensure blade is properly tensioned before cutting to prevent breakage. Replace blades that show cracks, missing teeth, or visible damage. Do not use excessive force — let the blade cut at its natural pace. Store blades in protective packaging to prevent accidental contact with sharp teeth.
Order DeWalt 12 Inch Bi-Metal Hacksaw Blades
Bi-metal construction. 18 TPI general purpose. HSS teeth on flexible body. Cuts aluminum, steel, copper. 2 pack. Fits all standard 12" hacksaw frames. Professional grade.
Add to Cart — Ships Fast
Nationwide shipping | Local delivery | In-store pickup available
Questions or bulk orders: sales@gutterall.com
Mon-Fri 7am-4pm | Sat 9am-12pm PST | (503) 850-6784
DeWalt 12 Inch Bi-Metal Hacksaw Blades — At a Glance
Bi-Metal Construction. 18 TPI General Purpose. HSS Teeth. Flexible Alloy Body. Cuts Aluminum, Steel, Copper. Universal 12" Fit. 2 Pack. Professional Grade.
GutterAll — Professional Contractor Equipment and Gutter Supplies
Damascus, OR 97089
Sat: 9am-12pm PST
