7Pcs 3-12mm Triangular-overlord Handle Multifunctional Drill Bits

Notice ：can not apply to hand drill with impact

Feature:

Made of fine quality material, low resistance, high hardness, improving work efficiency.

The design of triangle shank makes the clamping more tight and does not slip.

U-shaped spiral groove is smooth and flat, and the drilling is smoother.

Strong toughness and wear resistance, can be installed in electric drills.

Provides smooth and accurate drilling in tile, glass, brick wall, wood and so on.

Specifications:

Material: alloy

: red+silver

Total length:

6mm diameter: 100mm / 3.9in

8mm diameter: 110mm / 4.3in

10mm diameter: 120mm / 4.7in

12mm diameter: 120mm / 4.7in

Working length:

6mm diameter: 55mm / 2.2in

8mm diameter: 66mm / 2.6in

10mm diameter: 70mm / 2.8in

12mm diameter: 75mm / 3.0in

Shank diameter:

6mm diameter: 4.5mm / 0.2in

8mm diameter: 6mm / 0.2in

10mm diameter: 7mm / 0.3in

12mm diameter: 9mm / 0.4in

Package Contents:

5 x 6-12mm Drill Bit

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