10Pcs HSS Hole Tooth Drill Bit Set Stainless Steel Metal Wood Alloy 12-50mm

Specifications:

Material: HSS

Diameter: 12 16 18 20 25 30 35 40 45 50 mm

Optimal Rotational Speed:280~300r/min

Features:

1, after a special heat treatment, sharp edges, high strength.

2, with high precision, smooth, special impact resistance, good wear resistance

3, open the hole smooth without burr, saving time and effort.

4, when Chilled materials, edge should be filling cooling .

5, can be used for thick steel plates, cast iron, wood, stainless steel, aluminum, fiberglass, non-standard angle iron and metal open hole.

Use Note: smooth operation, to avoid the impact, please master the speed of a reasonable use when adding a little coolant (such as water), can extend the service life.

Package included：

10PCS HSS Hole Drill Bit

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