Ruko 108820 Terrax Core Drill Set Weldon 12-22 mm and 30 mm Cut Depth

For use in magnetic-stand and pillar drilling machines with morse taper retainer. In connection with RUKO arbor holders no. 108302 / 108303 / 108315 / 108316, with RUKO Easy Lock No. 108312 / 108313 / 108314 or a weldon direct shank such as the RUKO magnetic-stand RS 5e / RS10 drill. *****HANDLING***** Insert Weldon shank ejector pin into core drill. Push core drill into arbor and tighten hexagon socket screw firmly. Check proper seating of core drill in arbor holder. With the EasyLock arbor, the core drill gets automatically locked. Drill to full dimension straight away. No centring or pre-drilling required. The blade geometry of the core drill permits rapid upward chip removal. The spring-loaded ejector pin facilitates removal of the cut-out. Observe table of cutting speeds and employ appropriate cooling agent.

• Core drills have up to 10 x shorter drilling time compared to standard bits.
• Core drills only cut the teeth width, the drilling core is drilled out.
• Lower energy consumption and slippage results in a longer service life/
• With further developments in the cutting geometry a markedly better cut can be reached that has a positive effect on the cutting performance and service life.
• Centring, pre-drilling and drilling out become redundant.