:3PCS Spiral Coated
A variety of diameter sizes of drilling, reaming, chamfering, deburring and drilling.
Unique step structure, one drill can open various sizes of aperture, a ladder drill to a box bit.
Scope of application: automotive sheet metal, repair and modification, bridge doors and windows, home appliances.
Can be used for the following equipment: hand-held drilling machine, drilling machine milling machine, machining center.
Titanium alloy coating reduces friction and they are more durable than uncoated drill bits.HSS(High speed steel) has a longer service life.
1. Material: High Speed Steel 4241 (Used for the hardness of the material which is below 25°, like iron board, steel board, PVC board, Insulation board, etc.)
2. Surface: Titanium Plated
3. Groove Type: Spiral Groove
4. Shank: 1/4” Hexagon Shank
5. For Drilling in: thin iron plate, aluminum, insulation panels, PVC panels 4mm thickness within the timber
4-12mm: 9 Steps (4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm,12mm)
4-20mm: 9 Steps (4mm, 6mm, 8mm, 10mm, 12mm, 14mm,16mm,18mm,20mm)
Automatic Center Punch:
7.4 x 2.6 x 0.7 inches
Free shipping to USA and Canada. Delivery 2-3 weeks