Step Drill Bit 3-12/4-12/4-20/4-32 Hss Titanium Cone Cutting Tools Woodworking Metal Drilling Hole Drill Bit

Price range: ৳185.00 through ৳950.00

3-12mm (1pcs)
4-12mm (1pcs)
4-20mm (1pcs)
4-32mm (1pcs)
Set-1 ( 3-12mm)_1p , 4-12mm_1p, 4-20mm_1p )
Set-2 (4-12mm_1p, 4-20mm_1p, 4-32mm_1p )

Drill Bit Size & Qty

3-12mm (1pcs)
4-12mm (1pcs)
4-20mm (1pcs)
4-32mm (1pcs)
Set-1 (1pcs)
Set-2 (1pcs)

Clear

SKU: N/A Category: Drill & Screwdriver Bit Tag: Drilling Tools & Accessories

Description

Specifiction:

Hss Titanium Step Drill Bit
Model: Titanium Coated HSS Stepped Drill Set
Mechanism: Stepped Cone Drill with Titanium Nitride (TiN) Coating
Material: High-Speed Steel (HSS 4241)
Finish: Golden Titanium Coating (Anti-Rust & Heat-Resistant)
Sizes: 3-12mm, 4-12mm, 4-20mm, 4-32mm, Set-1 ( 3-12mm, 4-12mm, 4-20mm ), Set-2 (4-12mm, 4-20mm, 4-32mm )
Step Details: 3-12 (3,4,5,6,7,8,9,10,11,12), 4-12mm (9 steps: 4,5,6,7,8,9,10,11,12mm), 4-20mm (9 steps: 4,6,8,10,12,14,16,18,20mm), 4-32mm (15 steps: 4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm)_Total: 40+ Sizes
Shank: 1/4″ Hex Shank (Impact-Ready)
Max Thickness: 5mm (Steel), 8mm (Aluminum/Wood/Plastic)
Usage: Metal Sheets, Wood, PVC, Aluminum, Copper, Acrylic, MDF
Durability: Heavy Duty, Long-Lasting (5X Sharper than Uncoated)
Step Cone Cutting Tools Woodworking Metal Drilling Hole Drill Bit

Features:

Titanium Nitride Coating – Reduces friction & heat, 5X longer life
3-Piece Stepped Design – Covers 40+ hole sizes (3mm to 32mm)
High-Speed Steel (HSS) – Durable for metal, plastic, wood, aluminum
Self-Starting Tip – No pilot hole needed
Laser-Etched Markings – Clear size labels on every step
1/4″ Hex Shank – Fits impact drivers & quick-change chucks
Storage Case Included – Portable & organized
Stepped Drill Bit Set – the ultimate 3-piece titanium-coated HSS solution for clean, burr-free holes in metal, plastic, aluminum, and wood. Whether you’re a DIY enthusiast or a professional tradesperson in Bangladesh, this stepped drill bit set eliminates the need for multiple drill bits by offering 50+ hole sizes in one compact kit.
This stepped drill bit set features premium High-Speed Steel (HSS) cores with a golden titanium nitride (TiN) coating that reduces friction, heat, and wear – ensuring your bits stay sharp up to 5X longer than standard uncoated bits. The self-starting tip design means no center punch or pilot hole is required, preventing bit walking and ensuring perfect hole placement every time.
Each stepped drill bit set includes three versatile sizes: 4-12mm (9 steps) – ideal for small electronics and thin sheet metal, 4-20mm (9 steps) – perfect for plumbing, HVAC, and automotive work, 4-32mm (15 steps) – heavy-duty for thick plates and large conduit holes
Laser-etched size markings on every step ensure you’ll never guess the diameter again. The 1/4″ hex shank locks securely into impact drivers and quick-change chucks, making this stepped drill bit set compatible with all major drill brands (Bosch, Makita, Dewalt, etc.).
From enlarging existing holes to creating clean cuts in PVC, acrylic, stainless steel, or MDF – this stepped drill bit set does it all without tearing or chipping. The included durable plastic case keeps your bits organized and protected on the job site.
Why choose this stepped drill bit set?

- No more buying 20+ individual bits
- Cleaner holes than twist drills
- Works on curved and flat surfaces
- Trusted by mechanics, electricians, and woodworkers across Bangladesh

What is the price of Step Drill Bit 3-12/4-12/4-20/4-32 HSS Titanium Cone Cutting Tools Woodworking Metal Drilling Hole Drill Bit in Bangladesh?

The latest price of HSS Titanium Step Drill Bit 332mm in Bangladesh starts from Price: ৳215.00 to Price: ৳950.00 taka for 1 Pcs Drill Bit with selective size. You can buy this product at a better and cheaper price from our website and also you can visit our warehouse between work hours 10am to 8pm.

Buy Step Drill Bit 3-12/4-12/4-20/4-32 HSS Titanium Cone Cutting Tools Woodworking Metal Drilling Hole Drill Bit in Bangladesh from online at Dunia.com.bd.

In Bangladesh, you can get original HSS Titanium Step Drill Bit 332mm From Dunia.com.bd . We have few collection of latest Drill & Screwdriver Bit to purchase. Order Drilling Tools Online at our website Or Visit our warehouse to get your product at lowest price.

FAQ:

What materials can this stepped drill bit set cut through?
Mild steel (up to 5mm), stainless steel (up to 3mm), aluminum, copper, brass, PVC, acrylic, wood, MDF, and fiberglass.
Do I need a pilot hole with this stepped drill bit set?
No! The split-point tip is self-centering and starts on contact – no center punch required.
Will this stepped drill bit set fit my impact driver?
Yes – the 1/4″ hex shank is impact-rated and fits all standard quick-change chucks and impact drivers.
How many hole sizes does this stepped drill bit set cover?
A total of 50+ sizes across three bits: 4-12mm: 4,5,6,7,8,9,10,11,12mm 4-20mm: 4,6,8,10,12,14,16,18,20mm 4-32mm: 4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm
Can I use this stepped drill bit set on stainless steel?
Yes, but limit thickness to 2-3mm and use cutting oil/lubricant for best results and longer bit life.
Is the titanium coating just for color?
No – the TiN coating reduces heat and friction, increasing bit life by up to 5X compared to uncoated HSS.
Does this stepped drill bit set come with a warranty?
No – Because of imports from other countries we can’t provide any replacement warranty.
Can I enlarge an existing hole with this stepped drill bit set?
Absolutely! Just align the correct step over the hole and drill – no need for hole saws.
How do I maintain this stepped drill bit set?
Clean after use, apply light machine oil, and store in the provided case. Avoid excessive speed on hard metals.
Is this stepped drill bit set available with COD in Chittagong, Sylhet, or Khulna?
Yes – Cash on Delivery available across all 64 districts of Bangladesh.