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SET OF 7 HSS DRILLS 1/16-1/4″ x 1/32″
Sherwood HSS Ground Flute Jobber Drill Set, Inch – 7 Pieces
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.
HSS Ground Flute Jobber Drill Set – 7 Pieces
Industrial quality. Ground flute, blue finish. 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 : Part 1 DIN 338N & ANSI B94 – 11M.
Set contains: 1/16″, 3/32″, 1/8″, 5/32″, 3/16″, 7/32″ and 1/4″.
Out of stock
SKU : SHR0258890K
Sherwood HSS Ground Flute Jobber Drill Set, Inch – 7 Pieces
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.
HSS Ground Flute Jobber Drill Set – 7 Pieces
Industrial quality. Ground flute, blue finish. 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 : Part 1 DIN 338N & ANSI B94 – 11M.
Set contains: 1/16″, 3/32″, 1/8″, 5/32″, 3/16″, 7/32″ and 1/4″.
Specification :
Brand : Sherwood
eCl@ss Code : 21010101
No. of Pieces : 7
Overall Depth : 20
Overall Length : 150
Overall Weight : 0.355
Overall Width : 110
UNSPSC Code : 23241634
Weight each : 0.12kg
| Weight | 1 kg |
|---|
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A handy pocket sized reference booklet of data charts & tables
Suitable for the drawing office, toolroom or Workshop
9 Sections
194 Pages
Dimensions: (W x H)100 x 148mm