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#4 高速鋼黑色氧化標準長度鑽頭 - 12入

#4 高速鋼黑色氧化標準長度鑽頭 - 12入 - Main image
$10.49 $15.21 In stock
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產品規格

#4 HSS BLACK OXIDE JOBBER LENGTH DRILL BITS - 12 PACK

#4 HSS Black Oxide Jobber Length Drill Bits - 12 Pack is a drill bit that has a long length compared to its diameter. These bits provide more flexibility and absorb more shock and vibration than cobalt, powdered-metal, and carbide jobber-length. These jobber bits have a good balance of strength and precision when drilling into a range of materials. Each jobber bit is commonly used in softer materials such as wood, soft metals, or composite. They come in a wide range of sizes, finishes, and materials. Our jobber bits are designed, engineered, and superbly crafted to provide long-lasting durability.

135度分岔點設計,可防止鑽頭晃動、偏移或滑動,並免除預先打中心孔的步驟。這些鑽頭以M2高速鋼製造,並經熱處理,以確保延長使用壽命並提供最佳鑽孔性能。黑色氧化表面處理提供更高的耐磨性和耐腐蝕性。

數量: 12支

尺寸

  • 全長 – 3-3/4 英吋(標準長度)
  • 尺寸 – #4 線規
  • 小數等值 – 0.209 英吋
  • 柄徑 – 圓形直柄

適用機器:

  • 電動旋轉鑽和夾頭轉接器

適用材料:

鋼、金屬板、PVC、MDF、橡木、楓木、鋁等

安全提示/技巧:

  • 務必穿戴適當的個人防護裝備,包括(但不限於)安全眼鏡, 聽力保護, 呼吸防護,以及手部防護。保持機器上的所有防護罩就位。
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Customer Reviews (4.8 / 5 · 5 reviews)

Sofia H. ★★★★★

Twelve bits for the price of a couple singles at the hardware store, and the black oxide coating is holding up fine after a few dozen holes in mild steel. The jobber length gives me enough reach for deeper holes without chucking issues.

Elizabeth C. ★★★★★

Bought these to replace a single bit I kept breaking, and having 12 on hand means I'm not stopping mid-project anymore. The black oxide coating seems to help them stay sharp longer than the bare bits I've used before.

Brian X. ★★★★★

The 12-pack is clutch since I always snap the small sizes and hate reordering one at a time. These #4 bits cut clean through pine and the black oxide coating seems to be holding up fine after a dozen holes.