Twist Drill Set High Speed Steel External Cooling Round Handle 1.5mm Cutting Diameter 100mm Total Length 30mm Useful Length 135 Degree Tip Angle 13pic 19pic 25pic Styles Available
Twist Drill Set High Speed Steel External Cooling Round Handle 1.5mm Cutting Diameter 100mm Total Length 30mm Useful Length 135 Degree Tip Angle 13pic 19pic 25pic Styles Available
Twist Drill Set 1.5mm High Speed Steel External Cooling Round Handle 135 Degree Tip
This twist drill set delivers precise and efficient drilling with a 1.5mm cutting diameter, designed for use with round handle tool holders. The external cooling system helps manage heat during operation, maintaining cutting performance and extending tool life. Constructed from high speed steel, these drills offer reliable wear resistance for repeated use in workshop and industrial settings. The 135-degree outer blade tip angle enables clean starts and reduces the force needed to penetrate the workpiece. Available in three style options—13pic, 19pic, or 25pic—this set allows you to select the pack quantity that fits your workload. Each drill has a total length of 100mm and a useful length of 30mm, suitable for standard drilling tasks requiring consistent hole depth.
Features and Construction
The twist drill set is built around practical specifications that support accurate and repeatable drilling. The external cooling type, high speed steel material, and specific dimensions work together to provide a reliable tool for general-purpose drilling.
Material and Build
Each drill in the set is made from high speed steel, a material chosen for its ability to maintain hardness at elevated temperatures. This makes the drills suitable for use in a range of materials where consistent cutting is required. The round handle design with a 1.5mm diameter ensures compatibility with standard tool holder types.
Size and Practical Fit
The cutting diameter is 1.5mm, allowing for precise small holes. The total length of 100mm provides adequate reach, while the 30mm useful length and chip flute length support effective chip evacuation during drilling. The handle diameter matches the cutting diameter, simplifying selection and fitment.
Uses and Placement
This twist drill set is designed for general-purpose drilling tasks in workshop, repair, and light industrial environments. The 135-degree tip angle and external cooling make it suitable for use with handheld or machine-mounted tool holders.
Event or Professional Use
Professional metalworkers and machinists will find the precision 1.5mm size useful for small-diameter holes in jigs, fixtures, or prototype work. The external cooling helps maintain temperature control during extended drilling sessions, reducing the risk of workpiece damage.
Everyday Home Use
For home workshop enthusiasts, this set provides a dependable solution for drilling into materials such as thin metal, plastic, or wood. The straightforward round handle fits common drill chucks, making it easy to swap sizes or replace worn bits.
Benefits and Buying Value
The twist drill set offers practical value through its material choice, cooling design, and flexible pack options. These features contribute to consistent performance and reduced downtime from bit replacement.
Reuse and Low Maintenance
High speed steel drills can be resharpened multiple times, extending their service life. The external cooling design reduces heat stress, helping to maintain the cutting edge longer between sharpenings. Basic cleaning after use is sufficient to keep the drills ready for the next job.
Why Choose This Product
This set is a straightforward choice for anyone needing a 1.5mm twist drill in a high speed steel formulation with external cooling. The availability of three pack sizes—13, 19, or 25 pieces—lets you buy exactly the quantity you need without paying for extras. The consistent specifications across all drills in the set ensure predictable performance drill after drill.
