5pcs Countersink Drill Bit Woodworking Screws Chamfering Wood Hole Drills Bit with Hex Key NO5138

Features:

Adjustable Counterbore: Adjustable length of the counterborn,with fixing screw,use the attached hex key remove the screw and adjust the length of the counterbore.

Premium Quality: The drill bit made of tungsten steel alloy,more hardness,provide fast cutting and strong force.

Efficient Work: Smooth counterbore drilled to save you time and labor. The surface of the workpiece will be perfectly embedded with screw cap.

Compatible with: Applied with drilling rig,bench drill,hand drill and charging drill.

Use Tip: Vertical to avoid the drill bit from bending or breaking.

Specifications:

Material: Tungsten Steel Alloy 

Size: 8*2.8, 8*3, 8*3.2, 8*3.5, 8*4mm

Weight: 98g /  3.46oz

Package Weight: 107g / 3.77oz

Package Size: 100*50*50mm / 3.94*1.97*1.97in

Package List:

5 * Drill Bit

5 * Hex Key

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