NEIKO 10038A Left-Hand Drill-Bit Set – 135° Split-Point, TiN Coated HSS, SAE 13-Piece

Overview

Meet the NEIKO 10038A Left-Hand Drill-Bit Set, a versatile kit designed for busy workshops, auto bays, and home garages. The left-handed bits are purpose-built for objects you often encounter when using reversible drills with screw extractors, such as broken fasteners or seized screws. Built for speed and reliability, the bits feature high-speed steel with a titanium nitride coating to resist corrosion and help extend tool life. A rugged metal index case keeps each bit in its own labeled slot, making it easy to move from job to job while staying organized.

• 135-degree split point for precise self-centering and reduced walking
• Twist-style bits that clear chips quickly for faster cutting
• Titanium nitride coating enhances hardness and lowers friction
• Left-hand design supports screw extraction with reversible drills
• Durable metal index case with clearly labeled size slots

Construction and performance

The set uses high-speed steel as the base material. The 5-piece option incorporates M35 cobalt HSS for improved heat resistance, while the 13- and 15-piece options use M2 high-speed steel. The TiN coating adds surface hardness, helping the bits penetrate tougher materials while staying cooler under load.

• Left-hand geometry tailored for screw extraction tasks in automotive and home repairs
• 135-degree tip geometry reduces drift and improves initial bite
• Coating and alloy choices designed for longer life and smoother operation

Sizes and storage

Choose from 5-piece, 13-piece, or 15-piece SAE sets to cover common fastener sizes. Each kit arrives in a sturdy metal index case with individual slots for quick size identification, making it easy to transport and store in a toolbox, trunk, or workshop.

Real-world use

Whether you’re tackling automotive maintenance, DIY projects, or routine repairs, this kit offers a practical solution for removing stubborn fasteners and performing precise drilling tasks. Results will vary by material and technique, but the combination of left-hand bits, a precision point, and TiN coating provides a solid foundation for many common jobs.