Keil Assorted Metal Drill Bit Set HSS-E DIN 338 Cobalt, Ground Split Point, Diameter 4.0 + 5.0 + 6.0 + 8.0 + 10 mm

KEIL Metal Drill HSS-E DIN 338 Cobalt, Ground, Split PointA pre-graining is not necessary for drilling, even oblique surfaces, of pipes and weldingThe feed force is reduced by up to 50% The drill allows faster drilling rate up to 45% Regular chip removal and reduction of chip friction. Concentric accuracy and precisely round drillholes hooking the main cutting edge and loosening of tool clamping in through holes. High resistance to breakage and long service life. Reduced friction due to the tapered outer diameter. Increased fracture stability thanks to conically reinforced drillers. High operating time and fast drilling rate. Thanks to the chemical-thermal hardening process and high-precision cross-grinding Thanks to the alloy additive of 5% Co in the cutting tool material, these drills are well suited for machining workpieces with tensile strengths above 800 N/mm², even with not optimal supply of cooling lubricantsUp to 20% longer service life than Ifth HSS drills under comparable applicationsDrives:Cylindrical shank drive designDIN 338Profile ground, type N 5% cobalt partShort, cylindrical135° conical shapesSplit grinding according to DIN 1412 C from 3.0 mm ØDiameter Tolerance H8 application:Ideally suited for stainless steel, steel/cast steel/other MetalsApplication options:Can be used in all rotary and hammer drills in mechanical machinesOnly for turning. Box contents: HSS-E DIN 338 cobalt, ground, split point, 170 pieces, each 10 x Ø 1.0-8.0 mm + each 5 x Ø 8.5-10.0 mm (increased by 0.5 mm), in metal cases