Micrometer Setting Standards

For zero adjustment of outside micrometers. Accuracy: Flatness: within 0.3 mu m. Parallelism: within 2 mu m

167 Series (Micrometer NOT included)

Enamel Finish Interchangeable Anvil Micrometers

With one-piece carbide tip spindle and interchangeable hardened anvils with ground threads. Micro-lapped anvil and spindle faces, perforated frame with enamel finish. Supplied with standards, ratchet stop, positive locking clamp and supplied in a wooden or plastic (depending on size) storage case. Accuracy: Flatness: 0.6mm up to 300mm, 1.0mm up to 300 - 1000mm. Parallelism: (2L/100)mm (fraction rounded down.) Instrument Error: /-(4L/75)mm (fraction rounded up.) L maximum measuring length.

Series 104

Blade Micrometers - Satin Chrome Finished Frame

For the measurement of narrow grooves in forming tools, shaft diameters, keyways, splines, etc. The spindle is non-rotating, the anvils hardened and precision lapped. Made of forged steel the frame is fitted with heat plates. The sleeve and thimble are satin finished. Blade thickness: 0.030" (0.75mm). Measuring Depth: 0.25" (6.5mm). Parallelism: 0.00012"/3mm up to 2"/50mm. (3L/100)mm, (0.000120.00004L/4)" for models over 2"/50mm. Graduation: 0.0001" (0.01mm). Blade dimensions: a: 0.256" (6.5mm), b: 0.236" (6mm), c: 0.030" (0.75mm). Accuracy: /-3mm for up to 75mm, /-4mm for 75-100mm

122 Series

Accuracy:
3mm for up to 75mm.
4mm for 75 - 100mm.

Enamelled Frame External Micrometers

Economy type with carbide tipped anvils. Accuracy: Flatness: 0.6mm for up to 300mm (12"), 1.0mm for up to 300-500mm (12-20"). Parallelism: 2L/100)mm (fraction rounded down). L maximum measuring length

103 Series

Ratchet Thimble

Mechanical Tube Micrometers - Enamelled Frame

For measuring wall thickness, collars, tubing etc. checking dimensions from inside holes to outside edges. Measuring faces are carbide tipped, anvil and spindle are hardened, precision ground and micro-lap finished. Glare-free satin chrome sleeve and thimble, ratchet stop and positive locking clamp. Instrument Error: /-3mm.

Series 115

One Spherical Face Type

Blade Micrometers - Satin Chrome Finished Frame

For the measurement of narrow grooves in forming tools, shaft diameters, keyways, splines, etc. The spindle is non-rotating, the anvils hardened and precision lapped. Made of forged steel the frame is fitted with heat plates. The sleeve and thimble are satin finished. Blade thickness: 0.030" (0.75mm). Measuring Depth: 0.25" (6.5mm). Parallelism: 0.00012"/3mm up to 2"/50mm. (3L/100)mm, (0.000120.00004L/4)" for models over 2"/50mm. Graduation: 0.0001" (0.01mm). Blade dimensions: a: 0.256" (6.5mm), b: 0.236" (6mm), c: 0.030" (0.75mm). Accuracy: /-3mm for up to 75mm, /-4mm for 75-100mm

122 Series

Accuracy:
3mm for up to 75mm.
4mm for 75 - 100mm.

Enamelled Frame External Micrometers

Economy type with carbide tipped anvils. Accuracy: Flatness: 0.6mm for up to 300mm (12"), 1.0mm for up to 300-500mm (12-20"). Parallelism: 2L/100)mm (fraction rounded down). L maximum measuring length

103 Series

Ratchet Thimble

Interchangeable Rod Type

These are lightweight, well balanced and rigid. Satin-chrome finish with hardened, ground and lapped measuring screw. Each micrometer of less than 300mm (12") is supplied with convenient handle to reach into deep holes. The set also includes spacing collar, a series of precision measuring rods and a dull chrome plated micrometer head. Spacing collars are designed for making up for the limited stroke of the micrometer head. Each rod marked with length. Easily reset - adjustment positive and permanent. Anvil is made from high grade steel, hardened, precision ground, micro-lapped and adjustable. Spanner wrench supplied with each micrometer. Accuracy: Instrument Error: /-(6L/50) mu m; L maximum measuring length

Series 141

Hub Micrometers - Enamelled Frame

Tungsten carbide tipped measuring faces. Clear graduations on satin chrome finish.
Accuracy:
Parallelism: (2+L/100)mm.
Flatness: 0.6mm.
Instrument Error: 0-75mm ±2µm, 75-100mm ±3µm.

L = maximum measuring length.

Series 147

Micrometer Setting Standards

For setting external micrometers, calipers etc. to zero, providing accurate repeatability of measurements. Flat, lapped measuring ends with fitted heat insulation block.
Manufactured to BS 870.

167 Series (Micrometer NOT included)