Reamers | Pilots | Info
Adjustable Hand Reamers are versatile tools each capable of reaming a series of odd sized holes over a limited range of adjustment which goes from about 0.31 in (0.8 mm) in the smaller diameters up to around 0.593 in (15.0 mm) in the larger sizes. These reamers are also called king pin reamers.
Adjustment is easily done with two screwed collars which raise or lower the cutting blades by moving them along tapered seatings.
They are locked in position when the required diameter is reached.
Note that replacement blades are always supplied and fitted as a matched set.
| Range |
|
|
Expansion inch |
Sq. A inch |
||||
| inch | metric | inch | metric | inch | metric | |||
|
R.HV | 1/4-9/32 | 6.35-7.14 | 1-11/32 | 34.13 | 3-1/4 | 82.55 | 1/32 | 0.117 |
| R.HW | 9/32-5/16 | 7.14-7.94 | 1-1/32 | 34.13 | 3-1/2 | 88.90 | 1/32 | 0.129 |
| R.HZ | 5/16-11/32 | 7.94-8.73 | 1-1/2 | 38.10 | 4-1/8 | 104.78 | 1/32 | 0.152 |
| R.HY | 11/32-3/8 | 8.73-9.52 | 1-1/2 | 38.10 | 4-3/8 | 111.12 | 1/32 | 0.152 |
| Range | L1 | L2 |
Expansion inch |
Sq. A inch |
||||
| inch | metric | inch | metric | inch | metric | |||
| R.H-1 | 3/8-13/32 | 9.52-10.31 | 1-1/2 | 38.10 | 4-3/4 | 120.65 | 1/32 | 0.176 |
| R.H-2 | 13/32-7/16 | 10.31-11.11 | 1-1/2 | 38.10 | 5 | 127.00 | 1/32 | 0.187 |
| R.H-3 | 7/16-15/32 | 11.11-11.90 | 1-5/8 | 41.28 | 5-1/4 | 133.35 | 1/32 | 0.211 |
| R.H-4 | 15/32-17/32 | 11.90-13.49 | 1-5/8 | 41.28 | 5-1/2 | 139.70 | 1/16 | 0.234 |
| R.H-5 | 17/32-19/32 | 13.49-15.08 | 1-13/16 | 46.04 | 5-3/4 | 146.05 | 1/16 | 0.258 |
| R.H-6 | 19/32-21/32 | 15.08-16.66 | 2-1/16 | 52.39 | 6-1/2 | 165.10 | 1/16 | 0.281 |
| R.H-7 | 21/32-23/32 | 16.66-18.25 | 2-3/16 | 55.56 | 6-3/4 | 171.45 | 1/16 | 0.316 |
| R.H-8 | 23/32-25/32 | 18.25-19.84 | 2-1/2 | 63.50 | 7 | 177.80 | 1/16 | 0.363 |
| R.H-9 | 25/32-27/32 | 19.84-21.43 | 2-5/8 | 66.68 | 7-3/8 | 187.32 | 1/16 | 0.422 |
| R.H-10 | 27/32-15/16 | 21.43-23.81 | 3 | 76.20 | 8 | 203.20 | 3/32 | 0.445 |
| R.H-11 | 15/16-1-1/16 | 23.81-26.98 | 3-1/4 | 82.55 | 9 | 228.60 | 1/8 | 0.492 |
| R.H-12 | 1-1/16-1-3/16 | 26.98-30.16 | 3-3/8 | 85.72 | 10 | 254.00 | 1/8 | 0.562 |
| R.H-13 | 1-3/16-1-11/32 | 30.16-34.13 | 3-7/8 | 98.42 | 11 | 279.40 | 5/32 | 0.562 |
| R.H-14 | 1-11/32-1-1/2 | 34.13-38.10 | 4-1/4 | 107.95 | 12 | 304.80 | 5/32 | 0.656 |
| R.H-15 | 1-1/2-1-13/16 | 38.10-46.03 | 4-7/16 | 112.71 | 14 | 355.60 | 5/16 | 0.797 |
| R.H-16 | 1-13/16-2-7/32 | 46.03-56.35 | 4-7/8 | 123.83 | 16 | 406.40 | 13/32 | 1.031 |
| R.H-17 | 2-7/32-2-3/4 | 56.35-69.85 | 5 | 127.00 | 18 | 457.20 | 17/32 | 1.312 |
| R.H-18 | 2-3/4-3-11/32 | 69.85-84.93 | 5-1/4 | 133.35 | 20 | 508.00 | 19/32 | 1.500 |
OPERATION
Adjustment is a simple operation carried out by the loosening
of one nut while tightening the other, thus
allowing the blades to progress along the taper bottomed slots
resulting in an increase or decrease in the
Reamer diameter according to the direction of adjustment.
ADJUSTABLE HAND REAMERS
The Adjustable Hand Reamer is designed to fulfil the requirements
of a section of the Engineering Industry which has need of a versatile tool capable of reaming a small
number of odd size holes.
The Reamer being simple in design and free from complications
is easily adjusted to any diameter within the
limits of the expansion range and by use of a set of Reamers holes
of any size and tolerance from 1/4" to
3-11/32" or 6.35mm to 84.93mm can be obtained.
SCREW ON EXTENSION PILOTS
Complimentary to the Adjustable Reamer is a range of Screw-on Extension Pilots designed to meet the
demand for an attachment which makes easier the use of the conventional Expanding Hand Reamer when
line reaming on such jobs as king pins and piston bushing.
The Screw-0n Extension Pilot is supplied complete with a double-taper sliding Cone Bush and replacement
Collar.
When using the Extension Pilot it is essential to ensure that threads of both the Reamer and the Pilot are clean.
The method of fitting the Pilot is a simple operation carried out by removing the front adjustment nut and
replacing it with the plain collar with the internal chamfer facing the blades.
Screw on the Extension Pilot and replace the sliding bush using either the long or short taper whichever is the more suitable for the operation in hand.
For inline reaming of two holes, seat the tapered cone supplied into the second hole to be reamed and pass
the Pilot through the first hole and locate into the Cone and commence to ream the first hole, to ream the
second hole reverse the procedure.
| Part Number | L1 | |
| inch | mm | |
| R.P-HV | 4 | 101.60 |
| R.P-HW | 4 | 101.60 |
| R.P-HZ | 4 | 101.60 |
| R.P-HY | 4 | 101.60 |
| R.P-1 | 5 | 127.00 |
| R.P-2 | 5 | 127.00 |
| R.P-3 | 5 | 127.00 |
| R.P-4 | 5 | 127.00 |
| R.P-5 | 5 | 127.00 |
| R.P-6 | 5 | 127.00 |
| R.P-7 | 6 | 152.40 |
| R.P-8 | 6 | 152.40 |
| R.P-9 | 6 | 152.40 |
| R.P-10 | 6 | 152.40 |
| R.P-11 | 6 | 152.40 |
| R.P-12 | 6 | 152.40 |
| R.P-13 | 6 | 152.40 |
| R.P-14 | 6 | 152.40 |
| R.P-15 | 6 | 152.40 |
| R.P-16 | 6 | 152.40 |
| R.P-17 | 7 | 177.80 |
| R.P-18 | 7 | 177.80 |
Info
SIZE RANGE 1/4" to 3-11/32"
Adjustable Hand Reamers are versatile tools each capable of reaming a series of odd sized holes over a limited range of adjustment which
goes from about 0.31 in (0.8 mm) in the smaller diameters up to around 0.593 in (15.0 mm) in the larger sizes.
Adjustment is easily done with two screwed collars which raise or lower the cutting blades by moving them along tapered seatings.
They are locked in position when the required diameter is reached.
Note that replacement blades are always supplied and fitted as a matched set.