- 
		      S Nose Guard: Short with a notch; to be used with a standard 45 mm
		      long dental bur. Longer burs with small heads and straight shanks may be
		      used.
		    
 - 
		      SP Nose Guard: S Nose Guard with irrigation pipe.
		    
 - 
		      L Nose Guard: Long to be used with surgical burs at least 65 mm long,
		      with shank lengths of 60 mm.
		    
 - 
		      LP Nose Guard: L Nose Guard with irrigation pipe.
		  
  
		 | 
		
		    - 
		      SH-26: 1:1 Twist-Ring Chucking Straight Handpiece.
		    
 - 
		      SH-27: 1:1 20 degree Angled Twist-Ring Chucking Handpiece.
		    
 - 
		      SH-28: 1:1 Lever Chucking Straight Handpiece; when Nose Guard and
		      test bar are removed, accepts standard dental attachments, such as contra
		      and prophy angles.
		  
  
		 | 
		
		    - 
		      SH-29: 2.7:1 Reduction speed with lever chucking; slower speed/higher
		      torque.
		    
 - 
		      SH-31: 1:2 Double Speed Angled Twist-Ring handpiece.
		  
  
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