Watch & Clock Wheel and Pinion Cutters (Page 1)

1,  2,  3,  Notes on cutting   Index

 We are agents for the well known British cutter makers      P. P. Thornton (Successors) Ltd.  We can supply Horological Wheel & pinion cutters in cycloidal form to British Standard 978 part 2.

The cutters listed in the chart below are only available in High Speed Steel. Most are made to give square bottoms to the teeth, which is ideal for restoration work. Some cutters are available to cut round bottoms to the wheel or pinion, ( this is the root of the tooth is curved ) and some with short form ( the cutter cuts less deeply ).

The cutters are made by form relieving and are re-sharpenable, they must be kept very sharp to get the best results .

All cutters below Mod. 0.20 are round bottomed.

Price for wheel & pinion cutters 52.25 each, above module 1 the price is 68.00 each, all prices are plus VAT.

Chart of available sizes

Wheel and Pinion cutters

* = available       L= enquire as may be made later      n/a = not available

Module

6 Leaves

7 Leaves

8 Leaves

10 Leaves

12 Leaves

16 Leaves

Standard wheel

Round bottomed wheel.

Short form wheel.

0.15

*

*

*

*

*

*

*

n/a

n/a

0.18

n/a

n/a

n/a

*

n/a

n/a

*

n/a

n/a

0.20

*

*

*

*

*

n/a

*

L

n/a

0.25

*

*

*

*

*

n/a

*

L

n/a

0.30

*

*

*

*

*

L

*

*

n/a

0.35

*

*

*

*

*

L

*

*

*

0.40

*

*

*

*

*

*

*

*

n/a

0.45

*

*

*

*

*

*

*

*

*

0.50

*

*

*

*

*

*

*

*

n/a

0.55

*

*

*

*

*

L

*

L

*

0.60

*

*

*

*

*

*

*

L

n/a

0.65

*

*

*

*

*

*

*

*

n/a

0.70

*

*

*

*

*

*

*

*

*

0.75

*

*

*

*

*

*

*

*

*

0.80

*

*

*

*

*

*

*

*

*

0.85

*

*

*

*

*

*

*

*

*

0.90

*

*

*

*

*

*

*

L

*

0.95

*

*

*

*

*

*

*

*

*

1.00

*

*

*

*

*

*

*

L

*

1.10

L

L

*

n/a

n/a

n/a

*

n/a

n/a

1.20

*

n/a

n/a

*

L

L

L

n/a

n/a

1.30

n/a

n/a

n/a

L

n/a

L

*

n/a

n/a

1.40

n/a

n/a

n/a

n/a

n/a

*

*

n/a

n/a

1.50

n/a

n/a

*

*

L

*

L

n/a

n/a

Recoil Escape Wheel Cutter 

Recoil Cutters. No.1 No.2 No.3 No.4 No.5 N0.6 No.7
Width of cutter in mm. 1.27 1.78 2.54 3.18 3.81 4.45 5.08

Fine tooth Recoil cutters are made in 7 sizes, covering French to lantern clock escape wheels. Prices:-  44.50 each Plus VAT.

Deadbeat Escape Wheel Cutters

Four sizes of deadbeat cutters are available. Prices:- 44.50 each plus VAT.

Deadbeat Cutters. A B C D
Width of cutter in mm. 5.13 4.09 3.14 2.09

Musical Box Worm Wheel Cutters

These are available in six sizes 00, 0, 1, 2, 3, 4, 52.25 each plus VAT.

Other cutters

Straight Ratchet cutters 60 & 70 degree angle, for ratchet wheels, the teeth of which are not radiused. Prices:- PPT07 52.25 plus VAT.

Radiused Ratchet cutters, these are available to cut a radius of 6mm, 9mm, or 13.5mm.
Prices:- PPT08 44.50 plus VAT.

For more details see page's two and three.

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