High-Carbon Steel Auger Bits
Fast, Clean Wood Drilling Drill Bit Set
Drill smooth, deep holes with four-flute cutting design and self-feeding threaded tips that maximize chip removal and accuracy.
High-Efficiency Four-Flute & Four-Groove Design
Engineered with a robust four-groove spiral pattern that provides rapid chip evacuation compared to dual-groove drill bits. This continuous chip removal prevents binding, reduces heat buildup, and produces smooth, flat-bottomed holes with cleaner edges.
Self-Feeding Lead Tip for Precision Control
A self-tapping threaded lead point draws the bit cleanly into your workpiece. This eliminates the need for strong physical downward force, prevents slipping, and ensures highly accurate hole positioning right from the start.
Secure 1/4-Inch Hex Shank & Universal Compatibility
Crafted with a standardized 1/4" (6.35mm) hexagonal shank that locks tightly into quick-change chucks, preventing slippage under heavy loads. Fully compatible with lithium-ion cordless drills, standard hand drills, and bench drills.
Material Guide
Product Specifications
| Material | High-Carbon Steel |
| Shank Type | 1/4" (6.35mm) Hexagonal Shank |
| Drill Bit Diameters | 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm |
| Spiral Flute Length | 70 mm |
| Total Length | 165 mm |
| Piece Count | 8-Piece Set |
Frequently Asked Questions
What materials can I safely drill with this set?
This set is ideal for drilling wood, plastic, PVC, fiberboard, density board, and plywood. Do not use these bits on hard surfaces like metal, glass, or ceramic tiles, as this can damage the cutting edges.
Do these bits require hard pressure to start drilling?
No. The threaded self-tapping lead tip at the very top of each bit is designed to grab the material and automatically pull the bit downward as it rotates, making starting and controlling the operation much easier.
What kind of drills are compatible with these bits?
The universal 1/4" (6.35mm) hex shank design allows these bits to fit securely into standard lithium-ion cordless drills, conventional hand drills, and professional bench drills without rotating or sliding in the chuck.