ZHANGJIAGANG FLAME MACHINERY CO.,LTD.
                                                                                                           
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SAE Stubby Woodworking Drill Bits (1/16" to 3/8") | 1/4-Inch Hex Shank Brad Point Bits | Industrial HSS Tool Kit for Splinter-Free Drilling

Price Negotiable
Price: 1.25/SET
MOQ: 500SET
Delivery Time: 25-30 days
Brand: XRTOOLS
Product Description

1. Product Concept: The "Zero-Flex" Precision Solution

 

Standard drill bits often vibrate or flex when used in high-speed impact drivers, leading to imprecise holes. Our Stubby Series (Total Length: 2.32") is engineered for maximum rigidity and control. By optimizing the length for compact spaces, we’ve eliminated bit "walking" and increased torsional strength.

Forged from premium High-Speed Steel (HSS), these bits are designed for professional cabinet makers and installers who require perfectly centered, splinter-free holes in tight quarters.

 

 

 

2. Technical Specifications Table (SAE Sizes)

 

Based on the provided specifications, all bits in this set feature a consistent overall length for uniform depth control.

 

 

No. Specification (D) Flute Length (L2) Overall Length (L1) Shank Type
1 1/16" 0.90" 2.32" 1/4" Hex Shank
2 3/32" 1.10" 2.32" 1/4" Hex Shank
3 1/8" 1.10" 2.32" 1/4" Hex Shank
4 3/16" 1.10" 2.32" 1/4" Hex Shank
5 1/4" 1.18" 2.32" 1/4" Hex Shank
6 5/16" 1.18" 2.32" 1/4" Hex Shank
7 3/8" 1.18" 2.32" 1/4" Hex Shank

 

3. Engineering Excellence & Key Advantages

 

Ultra-Compact 2.32" "Stubby" Design

 

The uniform 2.32-inch length is specifically designed for working inside cabinetry, drawers, or between studs. The short-body construction significantly reduces the risk of bit breakage—a common issue with thin-diameter bits like 1/16" or 3/32".

 

Precision Brad Point (Center Spur)

 

The sharpened center point acts as a pilot, ensuring your hole starts exactly where you marked it. It prevents "skating" on polished wood or laminated surfaces, which is critical for precision hardware mounting.

 

Industrial HSS & Polished Flutes

 

Crafted from High-Speed Steel (HSS), these bits stay sharp longer than standard carbon steel bits. The wide, polished flutes facilitate rapid chip evacuation, preventing friction heat and burn marks on the wood.

 

Quick-Change 1/4" Hex Shank

 

The universal power hex shank provides a non-slip grip in impact drivers and quick-release chucks, allowing for rapid tool transitions on the job site.

 

 

 

 

4. Professional Applications

 

  • Cabinet Installation: Ideal for drilling shelf pin holes and hinge recesses inside pre-assembled units.

  • Furniture Assembly: Precise pilot holes for screws in hardwoods, softwoods, and plywood.

  • Renovation: Compact enough for drilling in confined spaces between joists or plumbing lines.

  • Plastics & Drywall: Clean-hole drilling in PVC piping and drywall without tearing or cracking.

 

 

 

5. FAQ (Frequently Asked Questions)

 

 

Q1: Why are these bits called "Stubby"?

 

A1: "Stubby" refers to the shortened overall length (2.32"). This design provides better leverage and access in confined spaces where a standard 4-6 inch bit won't fit. It also increases the bit's strength, preventing it from snapping under high torque.

 

Q2: Can I use these in a standard impact driver?

 

A2: Yes. The 1/4" Hex Shank is a universal fit for all modern impact drivers, cordless drills, and quick-change bit holders.

 

Q3: Are these bits suitable for drilling into metal?

 

A3: No. While they are made of High-Speed Steel (HSS), the Brad Point and Double Spur geometry are specifically precision-ground for wood and plastics. Using them on metal will damage the delicate centering tip and outer spurs.

 

Q4: Do these bits prevent wood splintering?

 

A4: Absolutely. The outer spurs shear the wood fibers at the edge of the hole before the main cutters remove the waste, resulting in a clean-cut entrance and exit.

 

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company ZHANGJIAGANG FLAME MACHINERY CO.,LTD.
Location No. 16 Wenchang Road, Huicun Village, Dinggou Town, Jiangdu District, Yangzhou City,Jiang Su Province.
Contact Person Jerry

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