3-Piece Spiral Flute Step Drill Bit Set – HSS with Tin Coating (4-12mm, 4-20mm, 4-32mm)

• Customization: Available
• Customized: Customized
• Standard: DIN
• Model NO.: 4-12, 4-20, 4-32mm
• Length: Step Drill
• Type: Step Drill
• Material: High Speed Steel
• Usage: Wood Drilling, Well Drilling, Metal Drilling
• Size: 4-12mm,4-20mm,4-32mm
• Materials: HSS Co, HSS M2, HSS 4341, HSS 4241
• Surface: Tin-Coating
• Package: Plastic Box
• MOQ: 100
• Delivery Time: 30days
• Process: Fully Ground
• Shank Type: Hex Shank
• Transport Package: Plastic Box, Blister Packing
• Specification: 4-12, 4-20, 4-32mm
• Trademark: OEM
• Origin: China
• HS Code: 82075090
• Production Capacity: 10000 Per Month

Product Description

3-Piece Spiral Flute Step Drill Bit Set - HSS with TiN Coating (4-12mm, 4-20mm, 4-32mm)

With our expertise and commitment to quality, SPEEDYTOOLS delivers precision twist drills, taper shank drills, step drills, countersinks, end mills, center drills, hole saws, diamond saw blades, and TCT saw blades for superior cutting performance in every application. 
 

 

  

The 3-piece spiral flute step drill bit set is engineered from high-speed steel (HSS) and features a Titanium Nitride (TiN) coating to enhance durability and performance. This set includes three drill bits with the following configurations:

• 4-12mm (9 steps): 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm
• 4-20mm (9 steps): 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm
• 4-32mm (15 steps): 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm

Each bit is designed with different shank types-round, hex, and three-faced-to ensure compatibility with a wide range of drill chucks and to provide a secure grip during use. The spiral flute design facilitates efficient chip evacuation, resulting in smoother and more precise drilling through metal, plastic, and wood.
 

Shank Type	Hex Shank	MOQ	100
Material	HSS Co, HSS M2, HSS 4341, HSS 4241	Delivery time	30-45days
Surface	Tin-Coating	Process	Fully Ground
Package	Plastic Box	Size	4-12MM,4-20MM,4-32MM

Specifications:

• Material: High-Speed Steel (HSS)
• Flute Type: Spiral 
• Coating: Titanium Nitride (TiN)
• Shank Types: Round, Hex, Three-faced
• Sizes: 4-12mm (9 steps), 4-20mm (9 steps), 4-32mm (15 steps)
• Applications: Metal, Plastic, Wood

 

Features:

• High-Quality Material: Constructed from HSS for enhanced durability.
• TiN Coating: Provides a hard surface that reduces wear and increases tool life.
• Multiple Shank Designs: Ensures compatibility with various drilling machines.
• Spiral Flute Design: Allows for efficient chip removal, reducing clogging and heat buildup.

 

Benefits:

• Extended Tool Life: The combination of HSS material and TiN coating ensures longevity.
• Versatility: Suitable for drilling a variety of materials, including metal, plastic, and wood.
• Enhanced Performance: Spiral flute design provides smoother and faster drilling operations.
• Secure Handling: Various shank designs offer compatibility and stability during use