Tungsten Steel Deep Hole Drill Bit Set Glass Brick Wall Tin Wood Hole Opener Flashlight Drill Bit with Triangle Handle External Cooling 6-12mm Cutting Diameter
Tungsten Steel Deep Hole Drill Bit Set for Glass Brick Wall Tin Wood with Triangle Handle

This set of deep hole drill bits is built for opening clean holes in hard and varied materials such as glass, brick, wall, tin, and wood. Each bit uses tungsten steel for reliable cutting performance and features a triangle handle that fits securely into standard drill chucks. External cooling helps manage heat during extended use, making these bits a practical choice for both professional and DIY drilling tasks. Available in four diameters, this set provides immediate versatility without needing to purchase single bits separately.
Features and Construction

Every bit in this set is machined from tungsten steel and designed with a triangle handle for non-slip grip. The external cooling design allows coolant or airflow to reach the cutting zone, reducing friction and prolonging bit life.
Material and Build
The bits are made from tungsten steel, a dense and hard material suitable for drilling into glass, brick, wall, tin, and wood. Each bit has a handle diameter of 10mm and a 135-degree external cutting edge angle for efficient material removal. The set includes four sizes: 6mm, 8mm, 10mm, and 12mm cutting diameter.
Size and Practical Fit
The useful length ranges from 100 to 123mm, and total length matches that range, providing enough reach for most standard drilling depths. The 10mm handle diameter fits most keyless and keyed drill chucks. Choose the style option to receive a single size or the full set.
Uses and Placement

These bits are suited for a variety of drilling applications where a clean hole is required. The tungsten steel tip handles glass and brick without chipping, while the same bit works for tin and wood, reducing the need for multiple tool changes.
Event or Professional Use
For tradespeople working on renovation or installation projects, having a single set that drills into glass, brick, wall, tin, and wood simplifies tool kits. The external cooling helps maintain performance during repetitive drilling in brick or wall materials.
Everyday Home Use
Home users can mount shelves, install fixtures, or create openings in glass panels using the same bit set. The triangle handle provides a secure grip even in lower-torque drills, making these bits accessible for non-professional use.
Benefits and Buying Value

Buying a set of four sizes means you have the right bit for common hole diameters without hunting for individual pieces. The tungsten steel construction reduces the need for frequent replacement, and the external cooling design supports longer drilling sessions.
Reuse and Low Maintenance
These bits can be reused many times on multiple materials. Simply clean off debris after use and store dry. The external cooling feature helps prevent overheating, which extends usable life.
Why Choose This Product
If you need one set that handles glass, brick, wall, tin, and wood, this tungsten steel deep hole drill bit set covers four sizes in one purchase. The triangle handle and external cooling are practical features that improve drilling control and bit longevity.
