Drill bit for metal Makita HSS-TiN 1/4" hex 10.0 x 102 mm

Makita HSS-TiN 1/4" hex 10.0 x 102 mm is a metal drill bit engineered for reliable drilling in metals and steel. The bit is manufactured from high-speed steel (HSS) and finished with a titanium nitride (TiN) coating to increase surface hardness, reduce friction and extend cutting life. Its 1/4" hex shank enables quick insertion into hex-chuck drills and impact drivers, while the 10.0 mm cutting diameter and 102 mm overall length provide a balance of reach and rigidity for general workshop and on-site tasks.

Advantages

The titanium nitride coating improves wear resistance and helps maintain cutting performance over extended use. The HSS core delivers high hardness and heat resistance for sustained drilling into steel and other metals. The 1/4" hex shank ensures a secure, slip-reducing connection in hex chucks and impact driver adapters, simplifying tool changes and increasing torque transfer. The combination of diameter and length offers practical versatility for through-holes and shallow-to-moderate depth drilling.

Suitable for

• Drilling holes in mild and alloy steels
• Use with hex-chuck drills and impact drivers
• Workshop fabrication, maintenance and repair tasks
• Sheet metal and structural components where a 10.0 mm diameter is required

Key specifications

• Material: high-speed steel (HSS) with titanium nitride (TiN) coating
• Shank type: 1/4" hex
• Cutting diameter: 10.0 mm
• Overall length: 102 mm
• Intended use: drilling metal and steel

How to use

Secure the drill bit in a compatible 1/4" hex chuck or impact driver adapter before starting. Mark the drilling point and, if necessary, use a center punch to prevent walking. Apply steady, moderate feed pressure and use appropriate drill speed for metal to avoid overheating; coolant or cutting fluid is recommended for prolonged drilling or when working with thicker metal. Retract periodically to clear chips and maintain cutting efficiency. After use, clean chips from the flutes and store the bit dry to protect the TiN coating.

Usage recommendations

Use cutting fluid or coolant for improved chip evacuation and reduced heat when drilling steel. Start with a lower speed and increase gradually if the drill bit remains cool; avoid excessive feed force to prevent breakage. Inspect the TiN coating for wear and replace the bit when cutting performance declines.