Set de burghie pentru metal DeWalt - Extreme DT4939-QZ, 8.5 x 117 mm, 10 buc.

Descriere

The metal drill bit set DT4939-QZ from DeWALT consists of 10 pieces designed for precise drilling of hard metals. The drill bits are made of HSS-E high-speed steel with 5% cobalt content, providing high resistance to heat and wear during intensive work. This material guarantees up to 4 times longer service life and increased resistance to breakage compared to standard HSS-R drill bits. These drill bits are suitable for drilling high-alloy steels and metals with tensile strength up to 1100 N/mm², including stainless steel, cast iron, bronze, and titanium. The special No-Walk tip with a 135° angle prevents slipping at initial contact and allows quick and easy penetration into the material. The shank with three flat sides ensures a stable grip in the drill chuck, eliminating the risk of slipping during operation. Set contents: <ul><li>10 pieces of DeWALT DT4939-QZ metal drill bits with a diameter of 8.5 mm.</li></ul> Features: <ul><li>Diameter: 8.5 mm;</li><li>Total length: 117 mm;</li><li>Working length (cutting length): 75 mm;</li><li>Drill bit material: HSS-E high-speed steel with 5% cobalt (HSS-Co 5%);</li><li>Cutting edge sharpening angle: 135°;</li><li>Shank type: cylindrical with 3 flat sides (anti-slip);</li><li>Shank diameter: 8.5 mm;</li><li>Number of cutting edges: 2;</li><li>Intended use: for steel, stainless steel, cast iron, and non-ferrous metals with tensile strength up to 1100 N/mm²;</li><li>Standard: DIN338;</li><li>Cutting direction: right;</li><li>Quantity in set: 10 pieces;</li><li>Manufacturer: DEWALT Industrial Tool Co.;</li><li>Set weight: 0.41 kg.</li></ul>