Product Name: Vacuum Brazed Diamond Drill Core Bits Sets Hole Saw Mixed size
Specification:

K1: 5pcs drill bits (19/28/35/45/51mm/20mm 5/8-11 finger bit 3/8" hexagon shank 5/8-11 to M14 adapter), 1pc 20mm finger bit, 1pc 5/8-11 to M14 adapter
K3: 5pcs drill bits (25/35/51/65/102mm/25mm 5/8-11 finger bit), 1pc 25mm finger bit, 1pc hex shank adapter

K4: 6pcs drill bits (19/25/35/45/51/65/20mm 5/8-11 finger bit 3/8" hexagon shank 5/8-11 to M14 adapter), 1pc 20mm finger bit, 1pc hex shank adapter

K5: 7pcs drill bits (16/19/25/35/45/51/65/20mm 5/8-11 finger bit 3/8" hexagon shank), 1pc 20mm finger bit, 1pc hex shank adapter

1, core bits: 5/8-11 connection; total length 62/75mm; diamond height 10/15mm;
2, finger bits: Dia 10/20/25mm; 5/8-11 connection; total length 65/75mm; workable length 50mm; grit #50/60;
3,The Hex adapter : 5/8-11 thread,  3/8" hexagon shank, shank length 28mm, total length 53mm；

Feature:
1.Dry or wet drilling
2.Having wide application: for porcelain tile granite marble stone masonry brick
3.All bits are produced in vacuum brazed technology
4.Vacuum brazed technology provides longer working life, fast and smooth drilling
5.Less chipping, minimizing breakage, less heat generation, better finish quality