Model D
Model D
Floating holders are used for holding drills, reamers, and other cutting tools in screw machines, turret lathes, CNC lathes, and CNC turning centers. These holders are designed with full floating feature to correct the misalignment that so often occurs between tool and workpiece.
The holder floats freely on ball bearing operating between hardened, ground, highly polished rolls which provide automatic radial adjustment to insure alignment of the cutting tool with a previously drilled hold. Chatter, bell-mouthed and egg-shaped holes are eliminated. Adjustment is quick and easy with a simple spanner nut.
Boyar-Schultz Model D Floating Reamer Holder is also adaptable for floating drills on special drilling operations. Bushings can be utilized to accept various size tool shanks.
| Model | OOOD | OOD | OD | 2D | 3D | 4D** |
| Ordering Number | 7675A | 7700A | 7725A | 7750A | 8000A | 8025A |
| Dimensions | ||||||
| A | 5/8 | 5/8 | 3/4 | 1 | 1-1/4 | 1-1/2 |
| B | 1/4 | 1/2 | 5/8 | 1 | 1 | 1-1/4 |
| C | 9/16 | 5/8 | 13/16 | 15/16 | 1-1/2 | 1-1/2 |
| D | 1-3/8 | 1-3/8 | 2-1/8 | 2-1/2 | 4 | 4 |
| E | 1-3/8 | 1-5/8 | 2 | 2-5/16 | 3-3/8 | 3-3/8 |
| F | 5/8 | 13/16 | 1-1/16 | 1-5/16 | 1-3/4 | 1-3/4 |
| G | 1-7/16 | 1-9/16 | 1-13/16 | 2 | 2-7/8 | 2-7/8 |
| H | 0.31 | 0.34 | 0.41 | .053 | 0.78 | 0.78 |
| Replacement Parts | ||||||
| Tool Head | 7676A | 7701A | 7726A | 7751A | 8001A | 8026A |
| Body | 7682 | 7707 | 7732 | 7757 | 8007 | 8032 |
| Top Lock Screw | 7677 | 7702A | 7727 | 7752 | 8002 | 8027 |
| Cap | 7678A | 7703A | 7728A | 7753A | 8003A | 8003A |
| Spanner Nut | 7681 | 7706 | 7731 | 7756 | 8006 | 8006 |
| Coupling | 7679A | 7704A | 7729A | 7754A | 8004A | 8004A |
| Thrust Washer (2 Reqd.) | 7683 | 7708 | 7733 | 7758 | 8010 | 8010 |
| Ball Assembly | 7680 | 7705 | 7730 | 7755 | 8009 | 8009 |
- *Collets are not supplied with tool holder. They can be ordered separately by collet size and I.D. size.
- **Size 4, 5, & 6 D & DC are non-stock tools – made to order.
