About this item

• Specification--13pcs/set. This kit contains 10pcs diamond core drill bits; 1pc 4/5 inch diamond finger bit; 1pc 2 inch diamond chamfer bit; 1pc connect 5/8"-11 thread to SDS-plus adapter.
• Application--EXFEIN core drill bits are used to drilling holes; finger bit for enlarging holes; chamfer bit for trimming holes; For porcelain ceramic tile marble granite, etc. Dry or wet use. Wet drilling with less debris for longer life
• Machine--5/8" arbor angle grinder. Recommended speed 6000RPM; Maximum speed 11000RPM. sds adapter in this kit can be attached to a drill bit with a 5/8" fitting so that the drill bit can be attached to your drill machine with sds-plus thread. If you are using this kit on a hand drill, make sure that the drilling speed does not go below 2000 RPM. and do not use the impact drill mode.
• Durability--Vacuum Brazed technology combines a high-quality steel matrix with diamonds in a scientific ratio and provides high efficient working performance and longer service life.
• Fast drilling--Lightning teeth has wide chip removal slots, dust can be quickly discharged when drilling, not easy to be clogged.
• For hand drill or other standard drill machine with sds-plus shank.
• Do not use impact or hammer mode.
• Specification--13pcs/set. This kit contains 10pcs diamond core drill bits; 1pc 4/5 inch diamond finger bit; 1pc 2 inch diamond chamfer bit; 1pc connect 5/8"-11 thread to SDS-plus adapter.
• Application--EXFEIN core drill bits are used to drilling holes; finger bit for enlarging holes; chamfer bit for trimming holes; For porcelain ceramic tile marble granite, etc. Dry or wet use. Wet drilling with less debris for longer life
• Machine--5/8" arbor angle grinder. Recommended speed 6000RPM; Maximum speed 11000RPM. sds adapter in this kit can be attached to a drill bit with a 5/8" fitting so that the drill bit can be attached to your drill machine with sds-plus thread. If you are using this kit on a hand drill, make sure that the drilling speed does not go below 2000 RPM. and do not use the impact drill mode.
• Durability--Vacuum Brazed technology combines a high-quality steel matrix with diamonds in a scientific ratio and provides high efficient working performance and longer service life.
• Fast drilling--Lightning teeth has wide chip removal slots, dust can be quickly discharged when drilling, not easy to be clogged.