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	Indexable Boring Bars Series SI-MTUN R/L	FEATURED BRAND

Features:

Negative 3° end cutting edge angle.
For use with 60° triangular negative clearance TNMG inserts.

RIGHT HAND SHOWN
LEFT HAND OPPOSITE

Page Contents:

Right Hand Boring Bars
Left Hand Boring Bars

Replacement Parts Reference

For use with
TNMG style inserts.



Boring Bar Style	"D" Min. Bore (in.)	"L" OAL (in.)	"d" Shank Size (in.)	"F" Center Line (in.)	TNMG Insert Series	Catalog No.	Price ($)

Right Hand
SI-MTUNR 12-3	1.000	10	3/4	.500	32	6-783R-012	69.95	ADD TO CART
SI-MTUNR 16-3	1.280	12	1	.640	32	6-783R-016	74.20	ADD TO CART
SI-MTUNR 20-3	1.530	14	1-1/4	.765	32	6-783R-020	83.45	ADD TO CART
SI-MTUNR 24-3	2.060	14	1-1/2	.890	32	6-783R-024	95.00	ADD TO CART
SI-MTUNR 20-4	1.530	14	1-1/4	.765	43	6-783R-120	86.00	ADD TO CART
SI-MTUNR 24-4	2.060	14	1-1/2	.890	43	6-783R-014	95.00	ADD TO CART
SI-MTUNR 32-4	2.562	14	2	1.281	43	6-783R-032	122.10	ADD TO CART

Left Hand
SI-MTUNL 12-3	1.000	10	3/4	.500	32	6-783L-012	69.95	ADD TO CART
SI-MTUNL 16-3	1.280	12	1	.640	32	6-783L-016	74.20	ADD TO CART
SI-MTUNL 20-3	1.530	14	1-1/4	.765	32	6-783L-020	83.45	ADD TO CART
SI-MTUNL 24-3	2.060	14	1-1/2	.890	32	6-783L-024	95.00	ADD TO CART
SI-MTUNL 20-4	1.530	14	1-1/4	.765	43	6-783L-120	86.00	ADD TO CART
SI-MTUNL 24-4	2.060	14	1-1/2	.890	43	6-783L-014	95.00	ADD TO CART
SI-MTUNL 32-4	2.562	14	2	1.281	43	6-783L-032	122.10	ADD TO CART

Prices subject to change without notice.
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Replacement Parts Reference (Click on Part Name to be forwarded to appropriate parts list.)
Boring Bar	Seat	Lock Pin	Clamp	Clamp Screw
SI-MTUN R/L 12-3	—	NL-33	CL-06	XNS-36
SI-MTUN R/L 16-3 SI-MTUN R/L 20-3 SI-MTUN R/L 24-3	ITSN-333	NL-34L	CL-06	XNS-37
SI-MTUN R/L 20-4 SI-MTUN R/L 24-4 SI-MTUN R/L 32-4	ITSN-433	NL-46	CL-20	XNS-48