





Step drill bit *1
Product Specifications
Established in 1992, Jintian has over 30 years of continuous development.
Operates three production bases in Asia, making it a leading enterprise in the saw blade industry.
Known for reliable quality and reasonable pricing, earning consistent recognition and excellent reputation among domestic users.
Pioneer in China’s carbide circular saw blades market.
Annual domestic sales exceed 15 million pieces.
Emphasizes professional focus and advanced technology accumulation, supported by excellent supply chain and refined management.
1992: Shanghai Jintian Tools Co., Ltd. founded.
2004: Taicang production base established.
2008: Dongtai production base established.
2019: Thailand production base established.
2021: Total saw blade production reached a length equivalent to circling the earth twice.
2025: Launch of new products including hole openers, drill bits, saw blades, and marble cutting discs.
1. Industrial Grade Hex Shank Step Drill Bits (Baota Drill Bits)

5-Piece Twist Drill Bit Set
CNÂ¥21.78
![DELIXI ELECTRIC Multi-Purpose Eccentric Drill Bit, Concrete Triangular Drill, Super Hard Alloy Angled Head, Tile Drill Bit [6mm], 1 Piece](https://img30.360buyimg.com/sku/jfs/t1/310140/34/20028/36706/688494d5F7c7598a3/7103ab46caabe7b0.png)
Yi Tiao Fen Xin Zuan [6mm], 1 Piece
CNÂ¥11.90
![DELIXI ELECTRIC Multifunctional Eccentric Concrete Triangle Drill Bit Super Hard Alloy Angled Tile Drill Bit [10mm] 1 Piece](https://img30.360buyimg.com/sku/jfs/t1/169807/6/48836/80518/66f64e9dF71cb92aa/4d2a1386754d530c.jpg)
Tilted eccentric drill bit [10mm] 1 piece
CNÂ¥20.90
| Item | Detail |
|---|---|
| Step drill design allows one bit to replace multiple drill sizes. | — |
| Suitable materials | Wood boards, aluminum sheets (≤2 mm), plastic sheets, iron sheets (≤2 mm), PVC, acrylic. |
| Available models and specifications | — |
| 15-step | Diameter 4-32 mm, step length 5 mm, shank diameter 6.35 mm, total length 75 mm |
| 9-step | Diameter 4-20 mm, step length 5 mm, shank diameter 6.35 mm, total length 47 mm |
| 5-step (HSS-4241, straight flute) | Diameter 4-12 mm, step length 8 mm, shank diameter 6.35 mm, total length 44 mm |
Double straight spiral grooves for smooth chip removal.
International standard 6.35mm hex shank for compatibility with various machines.
High wear resistance.
Titanium coating on high-speed steel surface enhances hardness, sharpness, and durability.
Suitable for drilling thicknesses of 1-5mm.
Cooling with water recommended during use to maintain performance.
HSS-4241 (less durable)
M35 cobalt-containing high-speed steel (more durable)
Available in spiral and straight flute designs.
| Item | Detail |
|---|---|
| Up to 1mm thickness | use handheld drill with power above 800W. |
| 2-5mm thickness | use drill press with speed below 500 RPM. |
Baota drill bits are ideal for materials with thickness between 1-5mm.
Multiple specifications available to meet diverse job requirements.
Trusted brand with uncompromising quality and customer confidence.

10*160mm round handle, ten pieces
CNÂ¥83.70