Sealey AK4745 HSS 4341 Step Drill Bit 4-30mm Double Flute

Sealey AK4745 HSS 4341 Step Drill Bit 4-30mm Double Flute
Twist Drill Bits

The Sealey AK4745 HSS 4341 Step Drill Bit has been designed for professional performance in metalworking and fabrication tasks. Crafted from high-speed steel (HSS 4341), this double flute twist drill bit ensures efficient, clean drilling over a range of diameters.

• Material: HSS 4341
• Diameter Range: 4–30mm
• Step Increments: 2mm
• Flute Type: Double
• Shank Type: Straight

Compared to standard twist drill bits, the Sealey AK4745 step drill bit provides superior versatility and precision across multiple hole sizes. Unlike single flute designs, the double flute configuration allows better chip evacuation, reducing heat and wear. This step drill bit outperforms earlier models by offering consistent hole sizes and minimising the need for bit changes, marking a significant advancement in twist drill bit design for both DIY enthusiasts and professional tradespeople.

Key Technical Advantages:
Technology and Performance

• The use of premium HSS 4341 material delivers excellent hardness and resistance to wear, allowing for prolonged operational life when drilling through metals, plastics, laminates, and more.
• The 2mm incremental steps provide precise control over hole size, eliminating guesswork and making enlarging existing holes straightforward and efficient.
• The double flute geometry enhances evacuation of swarf, which not only keeps the cutting edge sharp for longer but also maintains smooth drilling with minimal vibration.
• With a diameter span from 4 to 30mm, this step drill bit removes the necessity for multiple bit changes, streamlining tasks and boosting productivity on site.
• The straight shank grants secure chucking in most standard drills, reducing the likelihood of slippage during tougher applications.

By adhering to the highest industry standards, the Sealey AK4745 HSS 4341 Step Drill Bit stands out from conventional twist drill bits, particularly in terms of longevity, accuracy, and convenience. Its advanced design ensures that professionals and hobbyists alike experience smoother, faster hole-making with minimal tool expenditure, making it a standout choice for any tool kit. This blend of durable construction and advanced engineering solidifies the Sealey AK4745's reputation as a market leader in the realm of twist drill bits.