Elprom EDU-820

The Guhring No 5523 HSS-Co High Speed Steel Drill is a professional-grade jobber drill engineered for demanding machining applications across multiple material types. Manufactured from high-speed stee more→l with cobalt content, this drill delivers exceptional durability and heat resistance for commercial use. Designed for versatility, it excels when working with non-ferrous metals, structural and carbon steels, high-alloyed steels, cast iron, cast alloys, plastics, and aluminium. The 4-facet split point geometry ensures accurate positioning and reduces walking, whilst the straight shank configuration provides secure tool holding in standard drill chucks. The bright finish and manufacture to BS 328 …

The 20.5mm diameter bit features 200mm overall length with 135mm working length, providing substantial drilling capability for large hole requirements in heavy metalwork. This intermediate size offers more→precision for oversized clearance holes and custom fabrication applications. The robust HSS construction handles tough materials with ease. Features and Benefits: • 20.5mm diameter with 200mm overall length • 135mm working length for versatile applications • Reduced shank fits standard drill chucks • Black oxide finish for extended service life • Supplied in protective plastic wallet Specifications: Brand: Sealey Size: Ø20.5 x 200mm

The DT4909 Dewalt cobalt drill bit is 8% cobalt which maintains a sharper cutting edge and delivers 4x longer life versus DEWALT Black Oxide bits. The optimised tip and flute geometry delivers 2X the more→penetration speed, versus DEWALT Black Oxide bits, removes material faster and reduces heat build up. The stronger central core delivers 2X the resistance to breakage versus DEWALT Black Oxide drill bits. Specifications • Diameter: 6.5mm • Length:101mm • Working length: 63mm • Pack Quantity: 1