Fast-Cut Core Drills

Fast-Cut Core Drills

£32.70£56.80 ex VAT

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Description

Fast-Cut Core Drills

Metal bond diamond core drills, perfect for wet cutting clean holes in granite, hard marble and quartz/engineered stone up to 50mm thick in CNC, portable and semi-automatic machine.

The internal and external vacuum brazed diamond strips protect the drill walls and stop the stone slug/pellet from jamming inside the drill.

Available in 12, 16, 20, 22, 25, 28, 30, 35, 40, 45 and 50mm diameter, with 7mm high segment and ½” BSP fitting.

Technical Info

Diameter

(mm)

Recommended (RPM) Maximum (RPM)
12 4400 4900
16 4300 4730
20 2860 3146
22 2290 2540
25 2290 2540
28 1910 2380
30 1910 2380
35 1630 2180
40 1430 1910
45 1270 1690
50 1140 1470

 

  • Must be used wet with sufficient central and external water feed.
  • Clean thread and fitting before loading any new core drill.
  • Enter stone slowly.
  • Drill granite/quartz (Engineered stone) in one pass, do not peck drill.
  • Re-sharpen with dressing stick (reducing 50% RPM) if/when drill glazes.