A single Diablo DJT121BF bi-metal T-shank jig saw blade for thick metal cutting featuring 12 TPI, Swiss-made construction, and a 5-pack label.
Retail packaging for a 5-pack of Diablo 3-5/8 inch 12 TPI bi-metal jig saw blades highlighting up to 5X longer life and a T-shank design that fits all jig saws.
Technical product graphic for a Diablo bi-metal jig saw blade highlighting an ultra-hardened cutting edge for 5X longer life, optimized body design to reduce heat, and a fast plunge tip.
Individual Diablo DJT121BF 12 TPI jig saw blade for thick metal applications ranging from 1/8 inch to 1/4 inch thickness, shown as part of a 5-pack.
Tool compatibility icon featuring a gray silhouette of a professional jig saw power tool.
Material compatibility graphic illustrating that these Diablo thick metal jig saw blades are ideal for cutting structural steel between 1/8 inch and 1/4 inch thick.
Performance infographic demonstrating that one Diablo carbide teeth jig saw blade provides up to 50 times longer life compared to 50 standard high-speed steel blades.
Diablo’s Thick Metal Carbide Reciprocating Blade promotional video
A single Diablo DJT121BF bi-metal T-shank jig saw blade for thick metal cutting featuring 12 TPI, Swiss-made construction, and a 5-pack label.
Retail packaging for a 5-pack of Diablo 3-5/8 inch 12 TPI bi-metal jig saw blades highlighting up to 5X longer life and a T-shank design that fits all jig saws.
Technical product graphic for a Diablo bi-metal jig saw blade highlighting an ultra-hardened cutting edge for 5X longer life, optimized body design to reduce heat, and a fast plunge tip.
Individual Diablo DJT121BF 12 TPI jig saw blade for thick metal applications ranging from 1/8 inch to 1/4 inch thickness, shown as part of a 5-pack.
Tool compatibility icon featuring a gray silhouette of a professional jig saw power tool.
Material compatibility graphic illustrating that these Diablo thick metal jig saw blades are ideal for cutting structural steel between 1/8 inch and 1/4 inch thick.
Performance infographic demonstrating that one Diablo carbide teeth jig saw blade provides up to 50 times longer life compared to 50 standard high-speed steel blades.
Diablo’s Thick Metal Carbide Reciprocating Blade promotional video
DIABLO

Diablo Jigsaw Blade Set DJT121BF5 3-5/8 Inch (5 Pack 12 TPI Bi-Metal T-Shank Configuration For Thick Stainless Steel Structural Metal Cutting)

In stock
SKU: DJT121BF5
$13.89 USD

Description

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The Diablo DJT121BF5 3-5/8-Inch 12 TPI Bi-Metal T-Shank Jig Saw Blade 5-Pack is a high-performance cutting accessory engineered to section structural steel, thick metal plates, and stainless steel tracking ranging from 1/8-inch to 1/4-inch thickness. Featuring advanced Matrix II bi-metal teeth and an ultra-hardened cutting edge, these blades deliver up to five times the operational lifespan of conventional saw accessories by resisting extreme thermal friction and tooth wear. The universal T-shank connection configuration establishes a rigid, slip-free mechanical interface across major corded and cordless jigsaw platforms, while a specialized back taper body profile and a fast plunge tip design enable stable pocket entries into rigid metal profiles without walking or bending.

Best Used For:

  • Structural Steel Fabrication: Delivers continuous, low-vibration straight and curved sectioning through industrial structural framing steel components.
  • Thick Metal Panel Profiling: Provides deep-penetration cutting capacity for heavy-gauge carbon steel plates and tough stainless steel sheets.
  • Mechanical Pocket Installations: Executes secure internal plunge cutting and cutout adjustments in thick metal housings without requiring pre-drilled pilot holes.

Key Performance & Safety Features

  • Matrix II Bi-Metal Teeth: Premium high-speed steel edge electron-beam welded to a flexible carbon steel back layer provides industrial fracture resistance and high durability.
  • Perma-SHIELD Non-Stick Coating: Proprietary protective thermal barrier minimizes friction drag and pitch buildup to preserve cutting edge hardness.
  • Friction-Reducing Back Taper Geometry: Specialized body layout minimizes contact with the kerf wall, ensuring smoother clearances and lowered operating vibration.
  • Fast Plunge Tip Profile: Optimized structural entry point controls lateral deflection to establish quick, accurate, and safe pierce starts into metals.
  • Universal High-Stability T-Shank: Industry-standard interface design ensures structural compatibility and tight power transfer matching major professional combo saw units.

What's Included

  • (5) Diablo 3-5/8" 12 TPI Thick Metal Bi-Metal Jig Saw Blades (DJT121BF5)

Technical Specifications

Brand Diablo Tools
Model Number DJT121BF5
Blade Length 3-5/8 Inches
Teeth Per Inch 12 TPI
Shank Interface T-Shank Design
Material Capacity Range 1/8 Inch to 1/4 Inch
Tooth Material Grade Matrix II Bi-Metal
Blade Coating Perma-SHIELD Non-Stick
Primary Applications Thick Metal, Stainless Steel, Structural Alloys
Profile Attributes Back Taper with Plunge Tip
Pack Quantity 5 Blades

Pro-Tip: When cutting thick stainless steel plate profiles, lower your tool stroke speed and apply a specialized cutting wax directly to the blade path; this safeguards the 12 TPI Matrix II configuration from thermal hardening, maximizing tracking clean lines and extending tooth life.