This 5pcs countersinks are suitable for drilling less than 25HRC hardness workpieces, such as carbon steel, sheet iron,insulation board, PVC board, hard woods, wood, etc. They can drill out sunk holes for screw cap while drilling the screw hole andkeep them on the same axial, also suitable for the drilling machines with collets or adapters.
Specifications:
Color: Silver + Black
Material: Carbon Steel + High Speed Steel (HHS4241)
Hardness: HRC 60
Countersink Sizes: #5, #6, #8, #10, #12
Shank: 1/4"(6.35mm) Hex Shank
Quantity: 5 pcs Drill Bits + 1 pc Small Wrench
Chamfer Diameter: 10mm / 0.39"
Countersink Diameter:
5# 1.98mm / 0.078"
6# 2.38mm / 0.09"
8# 2.78mm / 0.11"
10# 3.175mm / 0.125"
12# 3.56mm / 0.14"
Countersink Length:
5# 54mm / 2.13"
6# 56mm / 2.20"
8# 61mm / 2.40"
10# 64mm / 2.52"
12# 69mm / 2.72"
Item Weight: Approx. 71g / 2.50oz (6pcs set)
Package Size: Approx. 7 * 5 * 1.1cm / 2.78 * 1.97 * 0.43in
Package Weight: Approx. 73g / 2.57oz
Package List:
5 * Countersink Drill Bits
1 * Hex Wrench