Dormer 1/4in x 100 mm HSS Hand Reamer

Introducing the series of high-performance HSS Hand Reamers Reamers form Dromer. These high-quality reamers have been designed for opening out and finishing holes to H7 tolerance in most ferrous and non-ferrous materials.

Full range of Dormer B100 series hand reamers include:
• Dormer B100 HSS Straight Shank Spiral Flute Hand Reamer, 2mm dia - 696-819
• Dormer B100 HSS Straight Shank Spiral Flute Hand Reamer, 3mm dia - 696-825
• Dormer B100 HSS Straight Shank Spiral Flute Hand Reamer, 4mm dia - 696-831
• Dormer B100 HSS Straight Shank Spiral Flute Hand Reamer, 5mm dia - 696-847
• Dormer B100 HSS Straight Shank Spiral Flute Hand Reamer, 6mm dia - 696-853
• Dormer B100 HSS Straight Shank Spiral Flute Hand Reamer, 7mm dia - 696-869
• Dormer B100 HSS Straight Shank Spiral Flute Hand Reamer, 8mm dia - 696-875
• Dormer B100 HSS Straight Shank Spiral Flute Hand Reamer, 9mm dia - 696-881
• Dormer B100 HSS Straight Shank Spiral Flute Hand Reamer, 10mm dia - 696-897
• Dormer B100 HSS Straight Shank Spiral Flute Hand Reamer, 12mm dia - 696-904
• Dormer B100 HSS Straight Shank Spiral Flute Hand Reamer, 13mm dia - 696-910
• Dormer B100 HSS Straight Shank Spiral Flute Hand Reamer, 14mm dia - 696-926
• Dormer B100 HSS Straight Shank Spiral Flute Hand Reamer, 16mm dia - 696-932
• Dormer B100 HSS Straight Shank Hand Reamer, 19mm dia - 696-948
• Dormer B100 HSS Straight Shank Hand Reamer, 1/8in dia - 696-702
• Dormer B100 HSS Straight Shank Hand Reamer, 3/16in dia - 696-724
• Dormer B100 HSS Straight Shank Hand Reamer, 1/4in dia - 696-730
• Dormer B100 HSS Straight Shank Hand Reamer, 5/16in dia - 696-746
• Dormer B100 HSS Straight Shank Hand Reamer, 3/8in dia - 696-752
• Dormer B100 HSS Straight Shank Hand Reamer, 1/2in dia - 696-774
• Dormer B100 HSS Straight Shank Hand Reamer, 5/8in dia - 696-796
• Dormer B100 HSS Straight Shank Hand Reamer, 3/4in dia - 696-803

• Suitable for use in most ferrous and non-ferrous materials
• 7-degree helix
• High Speed Steel
• Left Hand Spiral
• Steam Tempered
• Flutes finished in blue
• Lands finished in bright
• Available in a variety of metric and imperial sizes

• BS 328
• DIN 206B
• ISO 236

Reamers are rotary cutting tools with one or more cutting elements that are typically used for enlarging to size and contour previously formed holes. Hand or Machine Reamers are principal support during the cutting action is obtained from the workpiece. Reamers are typically used in:
• metalworking industry,
• engineering production,
• automotive and aircraft industries

What does H7 tolerance mean?

H7/h6 is a very common standard tolerance which gives a tight fit. The tolerances work in such a way that for a hole H7 means that the hole should be made slightly larger (up to 0.015 mm) than the base dimension.

This hand reamer from Dormer is a high-quality tool designed for precision drilling in ferrous and non-ferrous metals. With a 1/4 inch diameter and a spiral flute design, this reamer offers optimal performance for finishing existing holes to H7 tolerance. The HSS construction ensures durability and reliability, making it ideal for use in various industries.

• 1/4 inch diameter for precise drilling
• Spiral flute design for efficient chip removal
• High-speed steel construction for durability
• Ideal for finishing holes to H7 tolerance
• Suitable for use in ferrous and non-ferrous metals

• Precision drilling in ferrous and non-ferrous metals
• Reaming holes to H7 tolerance

Yes, this hand reamer is specifically designed to be used in both ferrous and non-ferrous metals.

The spiral flute design of this hand reamer ensures efficient chip removal during the reaming process.

Yes, it is intended to finish existing holes to H7 tolerance in most ferrous and non-ferrous metals.

Yes, this hand reamer is ideal for precision drilling in automation industries.

Yes, the high-speed steel construction of this hand reamer ensures durability and reliability for long-term use.

ISO/BS328/DIN206B