Precise Self-Aligning Tap & Reamer Holders

• 3900-0293 Tap Range: 0-1-/2" (2 Collets 0-#8 & #10-1/2")
• 3900-0291 Tap Range: 0-#8
• Base of guide has two 120° Vees, which accepts round parts.
• New 4 jaw design provides firm grip and 90° alignment, eliminates tap breakage while producing perfectly aligned threads.