AG011 Ridgway (Sheffield) 240 Jennings augers Half set + extras

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Availability: In stock

£155.00

AG011 Ridgway (Sheffield) 240 Jennings augers Half set + extras

155

A half set (1/4, 5/16, 3/8, 7/16, 1/2, 5/8, 3/4, 7/8, 1 inch) of William Ridgway 240 series Jennings pattern bits in excellent condition, plus matching 1", 1-1/8" and 1-1/4" Ridgway 1066 improved centre bits.

Supplied in a new British made 18 pocket canvas auger roll. 

Founded in 1878 William Ridgway & Sons were one of Sheffield’s most successful specialist manufacturers of auger bits, through various mergers and takeovers with Marples, C&J Hampton, Bahco, Irwin and ultimately Clico they were also the last.

Jennings pattern bits are made by twisting a flat forging into a spiral, this produces two flutes and opposing lands that support the bit in the hole, making them balanced and accurate. Widely regarded as the best bits for use in hardwoods, the fine thread version soon became popular with furniture makers and remains so to this day.

The double twist rests evenly on opposite sides of the hole, so the bit naturally wants to stay straight. The cutting lips release a circle of timber just ahead of the main cutting edge so that the main edges can plane out the waste with ease.

As with all self feeding augers, the best way to get a clean exit hole is to clamp a block of scrap on the exit side so that the surrounding timber is backed up and the lead screw still has something to bite into. 
 
You don’t need an auger bit file for Irwin or Jennings augers, any thin smooth file with a safe edge will work. I use a Bahco 5” warding file with the edge teeth ground off, which gets to all the edges of all the sizes and leaves a nice smooth surface.

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