DeWALT 29-Piece Twist Drill Bit Set for Metal, 1 mm to 13 mm HSS-Co DT4957-QZ

DeWALT DT4957-QZ is a professional 29-piece twist drill bit set engineered specifically for metal machining applications. Each bit is manufactured from high-speed steel alloyed with 5% cobalt (HSS-Co) to withstand elevated heat and provide exceptional wear resistance, making the set suitable for demanding industrial, laboratory, and manufacturing environments.

The drill bits incorporate precision-ground DIN 338 geometry delivering accurate and centered drill starts. Their right-hand cutting helix design promotes efficient chip evacuation, reducing the risk of clogging during prolonged operations. The gold ferrous finish applied on the bits further minimizes surface friction, enhancing drilling speed and bit longevity.

The extreme cobalt tips on the drill bits reduce walking on the material surface and improve initial drilling accuracy, significantly lowering setup time by reducing the need for center-punching. This feature enables quicker repetitive drilling operations on high-alloy steels and other tough metallic materials.

This set covers a comprehensive size range with bits between 1 mm and 13 mm diameter, catering to varied drilling requirements across metalworking applications, including stainless steel, chrome-nickel steels, cast iron, bronze, as well as heat- and acid-resistant steels. It is suitable for use on welded seams and high-strength alloys, providing versatility in industrial workshops and fabrication plants.

Ideal for use with both portable and bench-mounted drilling machines, the DeWALT DT4957-QZ drill bit set supports precise machining tasks within construction, maintenance, automotive repair, and manufacturing sectors.

The set includes 29 HSS-Co metal drill bits covering sizes 1 mm to 13 mm. 5% cobalt steel composition ensures durability under high cutting temperatures. Precision-ground tips allow for centered starts and reduce material walking.

Right-hand helix flute design aids chip removal and prevents clogging. Gold ferrous finish reduces friction and extends bit life. Applications include stainless steel, alloys, cast iron, and bronze. Compatible with portable and bench drilling equipment.

Manufactured in Germany to exacting quality standards. Explore more high-quality DeWALT Drill Bit Sets and power tool accessories on EnvMart for your professional and industrial machining needs.