OneWay Jaws

Workholding Jaws for OneWay, Talon and Stronghold Chucks

OneWay offer a unique series of jaws known as Premium Profile Jaws. These are offered as an alternative to the serrated jaw design employed in the standard OneWay jaws. There are advantages to both types of jaws. As mentioned elsewhere on this site, dovetail jaws are intended for use at their design, or nominal, diameter regardless of the amount of jaw movement permitted by the chuck design. This is the situation depicted in Figure 1 in the accompanying diagram which shows the profiled design on the left and a conventional design on the right. In this situation both the profile jaws and the serrated jaws grip equally well, with the serrated jaws having the advantage of causing less damaged to the wood in the grip area. However, as soon as you grip something which is not at the design diameter (see figure 2), the profile jaws grip much better as they are holding over a greater grip area. In this situation, the serrated jaws contact only a small area - which reduces as the timber diameter increases - and causes significantly increased damage to the timber. Premium Profile jaws also give the turner the flexibility of gripping square stock (see figure 3), which is not recommended when using serrated jaws.

The diagram, right, illustrates the meaning of the terms "External" and "Internal" grip as applied to chuck jaws.

The following tables show the reference numbers, for ordering, and the principal operating dimensions of the jaws sets available for the Oneway, Talon and Stronghold chucks, respectively.

Workholding Jaws for OneWay Chuck

Part No.	Description	compression (A)		expansion (B)
Part No.	Description	min	max	min	max
2156	Step Jaws (also known as #1 jaws)	10 mm	50 mm	22 mm	63 mm
3014	Spigot Jaws (Premium Profiled)	6 mm	44 mm	27 mm	63 mm
3239	Spigot Jaws	6 mm	48 mm	27 mm	70 mm
2157	#2 Jaws (Premium Profiled)	41 mm	76 mm	50 mm	92 mm
2573	#2 Jaws	41 mm	76 mm	50 mm	92 mm
2158	#3 Jaws (Premium Profiled)	86 mm	121 mm	98 mm	137 mm
3237	#3 Jaws	79 mm	114 mm	98 mm	140 mm
3661	#2 Tower Jaws	38 mm	67 mm	38 mm	67 mm
3658	#2 Tower Jaws (Premium Profiled)	38 mm	67 mm	50 mm	86 mm
3660	#3 Tower Jaws	86 mm	114 mm	98 mm	130 mm
3659	#3 Tower Jaws (Premium Profiled)	86 mm	114 mm	98 mm	130mm
2967	Mini Jumbo Jaws	50 mm	206 mm	101 mm	257 mm
2047	Jumbo Jaws	73 mm	279 mm	124 mm	305 mm
2678	Flat Jaws (jaw plates)	n/a	n/a	n/a	n/a

Workholding Jaws for Talon Chuck

Part No.	Description	compression (A)		expansion (B)
Part No.	Description	min	max	min	max
2156	Step Jaws (also known as #1 jaws)	10 mm	50 mm	22 mm	63 mm
3016	Spigot Jaws (Premium Profiled)	10 mm	41 mm	25 mm	60 mm
3239	Spigot Jaws	6 mm	48 mm	27 mm	70 mm
2157	#2 Jaws (Premium Profiled)	41 mm	76 mm	50 mm	92 mm
2573	#2 Jaws	41 mm	76 mm	50 mm	92 mm
3015	#3 Jaws (Premium Profiled)	73 mm	101 mm	86 mm	117 mm
3238	#3 Jaws	67 mm	95 mm	86 mm	121 mm
3661	#2 Tower Jaws	38 mm	67 mm	38 mm	67 mm
3658	#2 Tower Jaws (Premium Profiled)	38 mm	67 mm	50 mm	86 mm
3660	#3 Tower Jaws	86 mm	114 mm	98 mm	130 mm
3659	#3 Tower Jaws (Premium Profiled)	86 mm	114 mm	98 mm	130mm
2967	Mini Jumbo Jaws	50 mm	206 mm	101 mm	257 mm
2047	Jumbo Jaws	73 mm	279 mm	124 mm	305 mm
2678	Flat Jaws (jaw plates)	n/a	n/a	n/a	n/a

Workholding Jaws for Stronghold Chuck

Part No.	Description	compression (A)		expansion (B)
Part No.	Description	min	max	min	max
2104	Spigot Jaws (Premium Profiled)	10 mm	48 mm	29 mm	67 mm
3235	Spigot Jaws	10 mm	50 mm	25 mm	67 mm
2103	#2 Jaws (Premium Profiled)	44 mm	83 mm	60 mm	101 mm
2948	#2 Jaws	51 mm	89 mm	67 mm	114 mm
2106	#3 Jaws (Premium Profiled)	98 mm	133 mm	114 mm	152 mm
3236	#3 Jaws	92 mm	127 mm	111 mm	152 mm
3222	#4 Jaws (Premium Profiled)	108 mm	146 mm	124 mm	165 mm
3221	#4 Jaws	108 mm	137 mm	127 mm	165 mm
3599	#2 Tower Jaws	50 mm	95 mm	60 mm	102 mm
3602	#2 Tower Jaws (Premium Profiled)	50 mm	86 mm	70 mm	108 mm
3600	#3 Tower Jaws	95 mm	127 mm	111 mm	149 mm
3603	#3 Tower Jaws (Premium Profiled)	92 mm	127 mm	111 mm	149mm
2966	Mini Jumbo Jaws	76 mm	206 mm	127 mm	257 mm
2136	Jumbo Jaws	70 mm	279 mm	121 mm	305 mm
2159	Mega Jumbo Jaws	44 mm	356 mm	121 mm	381 mm
2756	Flat Jaws (jaw plates)	n/a	n/a	n/a	n/a

©1997-2009 P. Hemsley. The information on this website is the copyright property of Peter Hemsley. Coeur du Bois and The ToolPost are trading styles of Peter Hemsley. Whilst reasonable efforts are made to ensure the accuracy of information presented, no liability can be accepted for errors in this information nor for contingencies arising therefrom. If you are inexperienced in any aspect of woodworking, we would strongly counsel that you take a course of formal instruction before commencing to practice. Woodturning can be dangerous.