Ruko Spiral Drill Bit DIN 338 Thread-Rolled 201049 4.9 MM, Set of 10 in Plastic Packaging

• Thread-rolled spiral drill bits made of high-performance high-speed steel.
• High-performance spiral drill bits for all normal drilling jobs in all common materials.
• The thread-rolled spiral drill bits ensure increased resistance to breakage.
• Packaging unit: in plastic Packaging
• Areas of use: for steel, cast alloy and unlegiert (up to 900 N / mm ² strength, greys, Temper-, Sphäro- and die-cast, sintered iron, nickel silver, Graphite, short cutting aluminium alloys, brass, Bronze.

High-performance, roll-rolled twist drill bit made of high-performance high-speed steel. Thanks to the roll-rolled manufacturing process, the material is solidified and offers increased resistance to breakage. Areas of application: For steel, cast steel alloyed and unalloyed (up to 900 N/mm² strength), grey, malleable, ductile and die-casting, sintered iron, nickel silver, graphite, short-chipping aluminium alloys, brass and bronze. Technical data: Diameter: 4.90 mm. Total length: 86.0 mm. Spiral length: 52.0 mm. Tip cut: taper edge Tip: normal grinding. Tip angle: 118°. Spiral angle: 20-30°. Diameter tolerance: h8. Surface: black, steam tempered. Right-hand cutting. Box contents: 10 pieces in plastic packaging.