Sherwood Jobber drills are general purpose drills for steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium alloy and graphite. Industrial quality construction with ground flutes, blue finish. Supplied in indexing metal cases.

Features and Benefits
• High-speed steel with industrial quality construction for added toughness
• Ground flutes for greater cutting precision
• Supplied in indexing metal cases for quick and easy tool selection and portability

Contents
• 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0mm

Standards
• Manufactured to BS328 : Part 1 DIN 338N & ANSI B94 - 11M

Series J100 - Metric general purpose drills for steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium alloy and graphite.

Features and Benefits
• High speed steel construction with bright finish for increased toughness
• Supplied in the as-ground condition for use with non ferrous materials

Standards
• Manufactured to BS 328/DIN338RN

Notes
• Drills with a bright finish are supplied in the as-ground condition and such tools are used generally in the machining of non-ferrous materials.

Counterbores N with a diameter of 50mm and larger are all made with a driving lip. These sizes should be used in the appropriate type M toolholder.

Dimensions (mm) N, NA & W
Counterbores N, and NA with Ø of 50 mm and larger are all made with a driving lip. These sizes should be used in the appropriate type M toolholder
d: 14.0; d1: 6.0; L: 48.0; L1: 28.0.

Cut 6 Double Cut Crosscut and double cut to improve control and chipbreaks. Manufactured from high grade tungsten carbide for general-purpose use.

Features and Benefits
• Manufactured from high grade tungsten carbide for increased toughness
• Cut 6 double cut improves cutting control and chipbreaks
• Suitable for deburring and polishing applications

Typical Applications
• Deburring
• Polishin
• Cast iron
• Cast steel
• Carbon steel
• Alloy steel
• Stainless steel
• Materials up to HRC65 hardness

Notes
• Work piece and tools should always be steady and well supported
• Carbide burrs are not suitable for 'milling' large amounts of material, they are for light stock removal and high revolutions 'LOW FEED - HIGH SPEED'
• Always ensure that at least 70% of the shank length is clamped by the collet or chuck of the tool being used
• Always ensure that the tool is rated to the recommended operating speed of the burr