Drillco 4"-4 Hex Die (335E464C)
Drillco 335E464C 4"-4 Hex Die is a precision hexagonal rethreading die designed to repair large coarse threads on bolts, rods, and similar fasteners. Made from high carbon steel with premium grade high-speed steel (HSS) cutting edges, it provides excellent durability and reliable cutting performance for heavy-duty thread repair applications. The extra-thick body offers strength and stability during rethreading, while the staggered tooth design helps minimize chip buildup for smoother cutting. This die is intended for rethreading damaged or jammed threads only and is not suitable for cutting new threads on unthreaded materials. It features a bright finish that reduces friction and enhances lubricity, and fits standard square shank tap wrenches for use in both through-hole and blind-hole repairs.
Hexagonal rethreading die for coarse 4"-4 threads
Constructed from high carbon steel with premium grade HSS cutting edges
Extra-thick design provides durability and stability
Staggered tooth geometry reduces chip buildup
Bright finish improves lubricity and reduces wear
Compatible with standard square shank tap wrenches
Suitable for both through-hole and blind-hole repairs
Efficiently restores damaged coarse threads
Minimizes chip buildup for smooth rethreading
Durable construction ensures long-lasting performance
Bright finish enhances cutting action and tool life
Easy to use with common tap wrenches
Technical Specifications:
Thread Size: 4"-4
Type: Hex Rethreading Die
Material: High carbon steel with premium grade HSS
Shank: Standard square shank
Design: Staggered tooth
Usage: For rethreading damaged threads only; not for cutting new threads
Product identification
- Brand: Drillco
- Model / MPN: 335E464C
