Chisel & Spare Parts

Available Chisels Sizes and Shapes

 

5/8” (16 mm) diameter            45° flat point               $25 each or $44 per pair (Note 3)

7/8” (22mm) diameter             70° flat point               $60 each or $100 per pair

1” (25 mm) diameter               90° flat point                $50 each or $90 per pair

Flat blade 5/8” (16mm) wide x 3” (76mm) long         70° flat point   $85 each

Replacement Meister Trimmer chisels (5/16 post)    $47.50 per pair  while supplies last

 

Custom chisels of nearly any size or shape can be made. Ask if interested.

Notes:

​1. Chisels are warranted for 90 days, and only for breakage, not for wear.

2. Not all sizes are kept in stock. Long lead times may exist. Inquire.

3. The 5/8” 45° chisel IS NOT to be used in the T10 trimmer. It is for use in the T6 trimmer only. If used in the T10, damage to the chisel, trimmer, and/or user may occur.

Selecting a chisel

 

Point Angle     Use

    ​45°        Softer materials, precision breaks, smaller samples

    70°        General purpose, large samples

    90°        Very hard materials

Spare Parts

 

A limited number of spare parts for trimmers and microscope illuminators are held in stock. These parts are normally reserved for warranty repairs. Spares are available for sale on a limited basis, and not all product components are available.

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5/8” (16 mm)   45° 

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7/8” (22 mm)   70° 

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1” (25 mm)   90° 

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Flat blade 5/8” (16 mm) x 3" (76 mm)  70° 

One customer's words:

"Perfect!! Thanks!"

      -- Beth Heesacker, Forest Grove, OR

About Chisels

 

All Swarf Systems chisels are made from hardened high-tungsten alloy tool steel. After shaping the raw steel, the chisels are hardened by heat treating. The target hardness is HRC60. Any harder and the chisel might chip or splinter, and any softer and they will wear too quickly.

Why are chisels so expensive?

Indeed, for such a small piece of metal, chisels are expensive. It comes down to these three reasons:

1. The steel is more expensive. O-1 tool steel costs 3-5 times more than the other steel in the trimmer.

2. It takes a very long time to make a chisel. For example, one, single 1" chisel takes up to 2-1/2 hours to make.

3. The chisels have to be professionally heat treated to be usable. That isn't free.

Shaping a chisel in the milling machine

- see all the swarf -

I have a grinder. Can I resharpen my chisels?

This is a common question. The answer is Yes and No. In other words, if you are not careful, you will end up with worse chisels.

As you grind a chisel, friction causes it to heat up. That heat does the reverse of heat treating -- annealing. If you are not careful, you will have a very sharp -- and very soft -- chisel, which is worse than a dull, but hard, chisel.

The correct technique is to first, touch the chisel to the grinder wheel for NO MORE THAN 1-2 seconds, then immediately dunk the chisel into cold water. Inspect progress, then grind, then dunk. Repeat. This is slow, but it retains all of the hard structure.

The alternative is to file by hand. Yeah, like anyone would actually do that.

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