Drillco 3-1/4"-4 Hex Die (335E416C)
Drillco 335E416C 3-1/4-4 Hex Die is a precision-engineered hexagon rethreading die made from high carbon steel with premium grade HSS cutting edges for durability and extended tool life. Designed for restoring damaged or jammed threads, this extra-thick die is not intended for cutting new threads on unthreaded bar, bolts, or pipes. It features a black oxide surface treatment to improve wear resistance, and a self-centering 135° split-point that reduces thrust requirements and minimizes walking during use. The shorter screw machine length adds rigidity to reduce breakage. With a round shank compatible with standard holders, this USA-made die offers dependable performance for mechanics and maintenance professionals.
High carbon steel construction with premium grade HSS for strength and wear resistance
Extra-thick design optimized for effective rethreading of damaged threads
Black oxide surface treatment enhances durability and corrosion resistance
Self-centering 135° split-point reduces thrust and prevents walking
Shorter screw machine length increases rigidity and reduces breakage
Round shank compatible with standard holders and tools
Restores thread integrity to extend fastener lifespan
Reduces operator fatigue with lower thrust requirements
Minimizes downtime with reliable and efficient thread repair
Durable construction withstands repeated heavy use
Technical Specifications:
Thread Size: 3-1/4-4
Type: Hex Rethreading Die
Material: High Carbon Steel with Premium Grade HSS
Finish: Black Oxide
Design: Self-centering 135° split-point
Shank: Round shank compatible with standard holders
Application Notes: For rethreading only — not for cutting new threads
Origin: Made in USA
Product identification
- Brand: Drillco
- Model / MPN: 335E416C
