Uploaded July 2016 | Updated September 2026, 1 week ago
Modifying a standard 35 degree profiling insert toolholder to have a swivel with 22.5 degree increments of position. Method of making a indexing face coupling using balls. Radius grinding on the surface grinder. Grinding conical relief on carbide inserts to allow small diameter facial plunge cuts.
Paypal donation paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=W64WRAAGMA79J&source=url
Support through Patreon patreon.com/ROBRENZ
I am "robinrenzetti" Instagram lots more content there!
Great video synopsis by brs_workshop
"Shop Notes"*
• Overview of project and discrete design elements
• Shars toolholder used (3/4" SVJBR12-3B for VBMT 33x inserts):
shars.com/3-4-rh-svjb-small-screw-lock-positive-insert-tool-holder
This particular holder isn't common but would need to be specially selected for the application anyway.
• Grinding the tool holder to 5/8" (aka SVBJR10-3B but those are even harder to find)
• Tease of wheel dresser @ 3m20s: youtu.be/ltVndPaSauE?t=3m20s
• Here's Deschner's Kinechek page (TL;DR: It's an extremely accurate, tuneable, constant velocity damper):
deschner.com/products/kinechek
• Glimpse of electronic depth gage base on Mitutoyo digital caliper
• Hacksawing the tool body. It seems that Starrett stopped making Red-Stripe (solid HSS) hand-hack blades. They still make them for power hacksaws but those are thicker and deeper.
Bahco still makes a HSS all-hard blade but good luck finding them in the US.
• Tempering the tool holder.
• Milling and drilling the ball detent pattern with the bolt pattern function
• Grinding a radius handheld. Reminiscent of Tom Lipton's handheld radius milling: youtu.be/AZkP1uiMzJk?t=2m38s
• Assembling the joint
• Using Loctite 648 to retain the balls in the detents:
McMasterCarr: mcmaster.com/#loctite-648/=19u3nhb
Amazon: amazon.com/Loctite-442-21443-Retaining-Compound-Strength/dp/B000O01EU6
KBC Tool: kbctools.com/products/FLUIDS/THREADLOCKERS%20@@26%20SEALANTS/RETAINING%20COMPOUND/10026.aspx
Loctite page (648): na.henkel-adhesives.com/industrial/product-search-1554.htm?nodeid=8797714219009
Loctite page (retaining range): na.henkel-adhesives.com/industrial/retaining-compound-14963.htm
• Blue Moly links:
McMasterCarr: mcmaster.com/#bostik-never-seez-blue-moly-antiseize-lubricants/=19pflvg
Amazon: amazon.com/Never-Seez-NBBT-8-Anti-Seize-Compound-Temperature/dp/B001HWBSTM
• Relieving the tool holder using a rotary table setup at an angle in a grinding vise.
• The tool in use creating grind reliefs.
*Not affiliated with any manufacturer or distributor. Links for reference.
Modifying a standard 35 degree profiling insert toolholder to have a swivel with 22.5 degree increments of position. Method of making a indexing face coupling using balls. Radius grinding on the surface grinder. Grinding conical relief on carbide inserts to allow small diameter facial plunge cuts.
Paypal donation paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=W64WRAAGMA79J&source=url
Support through Patreon patreon.com/ROBRENZ
I am "robinrenzetti" Instagram lots more content there!
Great video synopsis by brs_workshop
"Shop Notes"*
• Overview of project and discrete design elements
• Shars toolholder used (3/4" SVJBR12-3B for VBMT 33x inserts):
shars.com/3-4-rh-svjb-small-screw-lock-positive-insert-tool-holder
This particular holder isn't common but would need to be specially selected for the application anyway.
• Grinding the tool holder to 5/8" (aka SVBJR10-3B but those are even harder to find)
• Tease of wheel dresser @ 3m20s: youtu.be/ltVndPaSauE?t=3m20s
• Here's Deschner's Kinechek page (TL;DR: It's an extremely accurate, tuneable, constant velocity damper):
deschner.com/products/kinechek
• Glimpse of electronic depth gage base on Mitutoyo digital caliper
• Hacksawing the tool body. It seems that Starrett stopped making Red-Stripe (solid HSS) hand-hack blades. They still make them for power hacksaws but those are thicker and deeper.
Bahco still makes a HSS all-hard blade but good luck finding them in the US.
• Tempering the tool holder.
• Milling and drilling the ball detent pattern with the bolt pattern function
• Grinding a radius handheld. Reminiscent of Tom Lipton's handheld radius milling: youtu.be/AZkP1uiMzJk?t=2m38s
• Assembling the joint
• Using Loctite 648 to retain the balls in the detents:
McMasterCarr: mcmaster.com/#loctite-648/=19u3nhb
Amazon: amazon.com/Loctite-442-21443-Retaining-Compound-Strength/dp/B000O01EU6
KBC Tool: kbctools.com/products/FLUIDS/THREADLOCKERS%20@@26%20SEALANTS/RETAINING%20COMPOUND/10026.aspx
Loctite page (648): na.henkel-adhesives.com/industrial/product-search-1554.htm?nodeid=8797714219009
Loctite page (retaining range): na.henkel-adhesives.com/industrial/retaining-compound-14963.htm
• Blue Moly links:
McMasterCarr: mcmaster.com/#bostik-never-seez-blue-moly-antiseize-lubricants/=19pflvg
Amazon: amazon.com/Never-Seez-NBBT-8-Anti-Seize-Compound-Temperature/dp/B001HWBSTM
• Relieving the tool holder using a rotary table setup at an angle in a grinding vise.
• The tool in use creating grind reliefs.
*Not affiliated with any manufacturer or distributor. Links for reference.
