Tool using: pistol drill, bench drill. Water to make ti cool while working, it can effectively extend the service life. Recommended drilling speed 250–400 rpm
Suit for use in hardness under 25 artifacts(Such as iron, steel, PVC panels, wood board ,Do not fit for cutting Stainless steel) , The plate thickness under 5mm
Preamer Spiral Groove HSS Ladder Step Drill Bits Set for Metal Wood Hole Saw Drill Bit Set,10-45mm
$53.99
- Unique ladder structure , it can open multiple Aperture
- it can not easily be broken.8 stepped:10,15,20,25,30,35,40,45MM
- It can deburr, chamfer and open hole, but ordinary twist drill can’t
- The step drill bit is made from upgraded high speed steel characterized by well-balanced toughness, wear resistance and red hardness properties for better and faster hole -drilling performance. The coating makes the drill bit more durable so that it can last for years with uncompromised quality.
- Surface Treatment:nitrogen treatment (increasing the hardness and abrasion resist.Material: HSS 4241
In stock
Additional information
| Weight | 0.359 kg |
|---|---|
| Brand | Preamer |
| EAN | 0711301730083 |
| UPC | 711301730083 |