ชุดดอกสว่าน SHR-025-8880K
คุณสมบัติสินค้า:
SKU : SHERWOOD : CUTTING TOOLS
ดอกสว่านเจาะเหล็กชุด 60 ชิ้นพร้อมกล่อง
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Sherwood Ground Flute Jobber Drill Sets HSS
Sherwood Jobber drills are general-purpose drills for steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium alloy and graphite.
With precision-ground flutes and black finish (W-finish), this is the most common surface finish and is the result of a steam tempering operation in which steam is passed over the product during a controlled tempering cycle, producing a black oxide layer.
Black tools are generally recommended for ferrous applications where the oxide layer aids chip flow, helps to dissipate heat by retaining some coolant on the tool surface and also helps to prevent the tool from staining.
Supplied in indexing metal cases. Point angle: 118, helix angle: normal, web thickness: standard, relief angle: 10-20, tolerance of diameter: h8, tolerance of shank: f11. Manufactured to BS328/DIN338RN.
Ground Flute Jobber 60 Piece Drill Set HSS - Gauge
Set contains: Gauge 1-60.
ORDER CODE : SHR-025-8880K
• Set contains: Gauge 1-60.สินค้าเกี่ยวข้อง
