Hole saws are cylindrical cups with a serrated edge to cut various sizes of holes in a variety of materials. The serrated edge is designed to cut the hole; the other end is designed to be driven by an arbor or drill chuck. There is a wide variety of hole saws available in the marketplace, from inexpensive carbon steel hole saws to extremely specialized, application driven hole saws. The most commonly used saw, however, is the bi-metal hole saw.   Read More>

Single Layer vs. The MatrixBut before we get into the differences, let’s see where there are some similarities. In contrast to both resin and sintered bonds, where the diamond grit is suspended within a matrix, electroplating and vacuum brazing are manufacturing techniques where the diamond is full   Read More>

Diamond tools represent the cleanest, safest and most efficient way of cutting, drilling, grinding or polishing construction materials ranging from extremely hard products such as baked clay, all the way through to extremely abrasive products such as asphalt. If selected & used correctly, they will   Read More>

Whether you are making changes to an existing glass-tiled area or starting a new installation project, it may be necessary to drill holes through the glass tiles to accommodate new fixtures or pipes. Although this may sound difficult, the process can be completed if you are willing to patiently work on the project.   Read More>

The Tungsten Carbide tipped masonry drill bits are used on percussion drills and cordless drilling machines with percussion action, available in straight shank, round shank, hexagonal shank, Triangle shank, Tapcon half flat shank, Taper shank. Ideal for drilling holes for a wide range of masonry typ   Read More>

A Power Tool is one of the most important tools in any workshop or site, and with the right Power Tool, You can get the job done quickly and efficiently whether drilling,cutting,chiseling,grinding, polishing,routing or sawing and so. Power tools can make a massive difference, and save you a lot of time.   Read More>

SDS Plus Hammer Drill Bits & SDS Plus Hammer Fitting Steel is one of the most popular Power Tools Accessories in our life, At Greetools, You always could get your favorite combination set of SDS Plus Hammer Drill Bits and Chisels for every hammer drilling project.   Read More>

By Mike IezziA combihammer combined with a dust-extraction bit drills holes cleanly.When it comes to drilling or demolishing concrete, there seems to be an endless array of specialized tools claiming to be up to the task. However, the sheer number of tools designed to power through concrete can some   Read More>

Trouble shooting guide-twist drills• Irregular hole size• Chipping of corner edge　• Low position accuracy• Chipping of cutting edge　• Hole perpendicularity• Abnormal wear on corner part　• Bad cylindrical accuracy• Large wear and chipping, crushing of the chisel edge• Poor surface finish• Chipping of   Read More>

HSS TWIST DRILL BITS 1. Raw material: HSS4241,HSS 6542,HSS M35 with 5% Cobalt2. Surface finish: Black, Bright, TiN3. Technology: Roll-edged, Fully ground4. Standard: DIN338,DIN340,DIN18975. Shank: Straight ,Taper Shank6. Cutting angle: 118º Standard Point. 135º Split   Read More>