Carmex Threadmill Single Insert Toolholder 21mm Cut. SR0021H21 Boring Head Arbor BT50 1.5" x 18 TPI M24 Drawbar ): 2-1/2"🔹 Reference Number: 731-SA3NF

): 2-1/2"🔹 Reference Number: 731-SA3NF

the INSIZE lug back provides reliable mounting for dial gauges

this full-profile insert forms the complete thread geometry crest

Technical Specifications🔹 Thread Size: UNC 1/4"🔹 Thread Standard: Unified National Coarse (UNC)🔹 Thread Tolerance Class: ISO 2 (2B)🔹 Flank Angle: 60°🔹 Tap Type: Gun Nose Spiral Point Short Machine Tap🔹 Cutting Direction: Right-Hand🔹 Application: General-Purpose Through Hole Tapping🔹 Shank Standard: ISO 529🔹 Material: HSSE-V3 (High-Speed Steel)🔹 Hole Type: Through Hole

Carmex Threadmill Single Insert Toolholder 21mm Cut. SR0021H21 Boring Head Arbor BT50 1.5" x 18 TPI M24 Drawbar ): 2-1/2"🔹 Reference Number: 731-SA3NFMill Thread Toolholder SR0021H21, 21 mm, Single Insert with Internal Coolant The SR0021H21 Mill Thread Toolholder is engineered for high performance thread milling with single insert setups, delivering precision and stability in challenging applications. With a cutting diameter of 21 mm and an internal coolant bore, this toolholder optimizes chip evacuation and thermal control during machining. Its secure screw clamping mechanism ensures consistent