Cemented carbide counterbore drill generally used for the hole of the semi-finishing or finishing for hinge or grinding before the expansion of the pre-processing or blank hole, a 3-4 edge with no chisel edge, the rake angle and a rear angle along the cutting edge of a small change in the machining guide effect, the axial resistance is small, the cutting conditions than drilling.

Cemented Carbide Counterbore Drill

Cemented carbide counterbore drill after drilling correction drilling centerline position and reduce the degree of surface roughness values, improve hole quality tool.Tungsten carbide counterbore drills for hole final processing or reaming, the grinding holes before the pre-processing. Reaming drill is similar with twist drill, usually 3 to 4 teeth, thus reaming drill-oriented. Reaming margin is small, and the tungsten carbide counterbore drills without lateral edges, to improve the cutting conditions. And chip groove shallow, discrepancies in the actual thick, so the higher the strength and stiffness of the reaming drill, the larger cutting parameters can be selected. National standards, high-speed steel reamer Ф7. 8-50mm made taper shank, Ф25-100mm do sets. Currently, many factories use tungsten carbide counterbore drills, and indexable counterbore drills.

Cemented Carbide Counterbore Drill

Cemented carbide counterbore drill composition

1.Tungsten carbide counterbore drills tolerance class: IT9 ~, IT10.Tungsten carbide counterbore drills surface roughness: 6.3 to 3.2.

2.Tungsten carbide counterbore drills features: oriented; small reaming margin; chisel; improved cutting conditions; shallow flute; discrepancies in the actual thick; higher strength and stiffness; larger cutting parameters can be selected; processing quality and productivity than twist drills.

Chinatungsten Online can provide various sizes and grades of cemented carbide cutting tools, non-standard products are also customized according to customer requirements. Welcome to consult and purchase sales@chinatungsten.com, sales@xiamentungsten.com.