Drillco 33mm x 3.50 Carbon Hex Re-Thread Die (336E330B)
Drillco 336E330B 33mm x 3.50 Carbon Hex Re-Thread Die is a precision hexagon rethreading die designed to repair damaged or jammed threads on bolts, studs, and threaded rods. Made from high carbon steel with premium grade cobalt high-speed steel (HSS), this extra-thick die is engineered for drilling harder materials and offers approximately 30% faster drilling than standard HSS dies. It is intended for thread restoration and not for cutting new threads on unthreaded bars, bolts, or pipes. The die features a self-centering 135° split-point that reduces thrust requirements and minimizes walking. A bronze surface treatment provides high lubricity for smoother operation. The shorter screw machine length adds rigidity to reduce breakage, and the round shank ensures compatibility with various tap wrenches and die holders. This model includes 540 pieces in various sizes, making it versatile for a wide range of thread repair needs.
Precision hexagon rethreading die made from high carbon steel with premium grade cobalt HSS
Extra-thick design for repairing damaged or jammed threads
Self-centering 135° split-point reduces thrust and walking
Bronze surface treatment for enhanced lubricity
Shorter screw machine length adds rigidity to reduce breakage
Round shank compatible with common tap wrenches and die holders
Contains 540 pieces in multiple sizes for comprehensive use
Effectively restores damaged threads
Faster drilling on harder materials
Durable construction for extended tool life
Reduced breakage risk with enhanced rigidity
Wide variety of sizes for versatile applications
Technical Specifications:
Type: Hexagon Rethread Die
Size: 33mm x 3.50
Material: High carbon steel with premium grade cobalt HSS
Geometry: Suitable for through-hole and blind-hole applications
Surface Treatment: Bronze finish for high lubricity
Length: Shorter screw machine length for rigidity
Shank: Round shank
Application: Rethreading damaged or jammed threads
Pieces Included: 540 pieces across multiple fractional sizes
Origin: Made in USA
Product identification
- Brand: Drillco
- Model / MPN: 336E330B





