Klein Tools Step Drill Bit Set 3-Piece Quick Release 1/4-Inch Hex Shank AlTiN Coated Multi-Material

Klein Tools Premium Electrician's Quick Release Step Bit Set

Professional-Grade 3-Piece Step Drill Bit Set with AlTiN Coating

The Klein Tools Premium Electrician's Quick Release Step Bit Set delivers professional-grade drilling performance for multi-material applications. This high-speed steel 3-piece set features aluminum titanium nitride coating and quick-release hex shanks designed for electricians, contractors, and electrical professionals, providing the reliable performance and industry-leading quality that tradesmen demand from America's most trusted tool manufacturer.

Professional Features & Benefits

Advanced Coating Technology

• Aluminum Titanium Nitride (AlTiN) Coating - 10 times more durable than steamed black oxide coating for extended bit life and superior performance
• Double Spiral Flute Design - Removes chips efficiently for faster cuts and smoother drilling operation
• Fast-Starting Non-Walking Drill Tip - Provides precise hole placement and reduces bit wandering on material surfaces
• Laser Markings - Easy-to-read size identification for quick selection and professional efficiency

Professional Construction & Durability

• High-Speed Steel Construction - Premium material provides exceptional durability and cutting performance across multiple materials
• Impact Rated Shaft - Compatible with both impact drivers and standard drills for versatile professional applications
• Quick-Release 1/4-Inch Hex Shank - Provides firm, positive grip that won't spin out during drilling operations

Modular Storage System

• Compact Modular Case - Designed to nest within MODbox toolboxes and Case Adapter Side Rail Attachments for organized storage
• Cutting Oil Included - Professional-grade cutting oil extends bit life and improves cutting performance

Technical Specifications

Three-piece set with size ranges: 3/16" to 7/8" (4.8 to 22.2 mm), 7/8" to 1-1/8" (22.2 to 28.6 mm), and 7/8" to 1-3/8" (22.2 to 34.9 mm). Features 12, 2, and 3 holes respectively. High-speed steel construction with aluminum titanium nitride coating. 1/4-inch hex shank design. Case dimensions: 3.72" W x 9.25" D x 1.8" H. Total weight: 1.28 lbs. Spiral flute design for efficient chip removal.

Installation & Usage

1. Select appropriate step bit size for desired hole diameter and material thickness
2. Apply cutting oil to bit surface for optimal performance and extended life
3. Insert quick-release hex shank firmly into drill chuck or impact driver
4. Position fast-starting tip at marked drilling location to prevent walking
5. Begin drilling at moderate speed, allowing double spiral flutes to clear material chips
6. Step up through sizes gradually for larger holes, maintaining steady pressure and speed

Professional Applications

Ideal for:

• Electrical Installation - Drilling holes in electrical panels, junction boxes, and conduit fittings
• Steel Fabrication - Creating precise holes in steel up to 16 gauge thickness
• HVAC Applications - Drilling ductwork and sheet metal components
• Telecommunications Work - Installing cable entry points and mounting hardware
• Industrial Maintenance - Repair and modification work on metal enclosures and equipment
• Construction Projects - Multi-material drilling in wood, plastic, and aluminum components
• Automotive Electrical - Creating wiring passages and mounting holes
• Commercial Electrical - Panel modifications and conduit installations

AlTiN Coating Advantage

Klein Tools' aluminum titanium nitride coating technology provides superior hardness and heat resistance compared to standard coatings. This advanced surface treatment reduces friction, prevents material buildup, and maintains sharp cutting edges longer. The coating's gold color also provides easy visual identification and professional appearance that reflects Klein's commitment to quality craftsmanship.

Why Choose Klein Tools Quality?

Since 1857, Klein Tools has been America's premier manufacturer of professional-grade tools for electricians and tradesmen. Each step bit undergoes rigorous testing to ensure it meets Klein's exacting standards for durability, precision, and safety. The modular case system reflects Klein's innovation in tool organization, while the premium AlTiN coating demonstrates the company's commitment to advancing tool technology for professional applications.