Reamer Bits

When completing high-performance projects that require the forming of precise holes in or through materials, the sides of the hole may require additional work to ensure they are completely smooth. In this case, reamers are designed to completely smooth the hole to a high degree of accuracy.


Due to the removal of the uneven material, reaming will slightly enlarge the hole you have created, therefore making it advisable to form the initial hole fractionally smaller to allow for the reaming space – this is called the allowance. It is recommended that the drilled hole should not be enlarged by more than 5% of the drilled diameter.


Typically made from carbide or high-speed steel (HSS), these multi-edged rotary cutting tools are used in metalworking for enlarging and finishing holes to a high level of precision and accuracy.


What types of reamer are there?


At RS Components, we have both machine reamer bits and hand reamer bits. The main difference between the two is that hand reamer bits have a longer taper or lead in at the front end of the bit, which compensates for the difficulty of using hand power alone.


Straight reamer bits are used to make only minor enlargements to holes, typically ones used for the force-fitting of location dowel pins or for unthreaded shoulder bolts.


With helical/spiralled reamer bits, a clockwise reamer will pull any debris up and out of a blind hole, whereas an anti-clockwise reamer will push debris forward, which can be helpful when creating a through-hole.


A tapered reamer is used to make a tapered hole for a tapered pin, which is a self-tightening device due to the shallow angle of the taper. They are commonly used in aircraft assembly and may only be re-reamed a small number of times during an aircraft’s career.


Combination reamers have two or more cutting surfaces, cut to resemble the part’s multiple internal diameters. Using combination reamers reduces the number of separate operations as well as precisely creating relative depths and diameters.


Adjustable reamers consist of several blades along a tapered groove that can be adjusted to cover a small range of hole sizes. They are restricted to light usage due to the absence of any spiral in the flute, meaning they will only remove minimal material for each diameter setting, and cannot be used in holes that have an axial split.


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Afficher 1 - 20 des 42 produits
Nombre de résultats par page
Description Prix Shank Type Diameter Overall Length Material
N° de stock RS 394-251
MarqueRS PRO
70,67 €
Each
Unité
Straight 9.25 → 10mm 115 mm HSS
N° de stock RS 394-302
MarqueRS PRO
119,54 €
Each
Unité
Straight 19 → 21mm 180 mm HSS
N° de stock RS 394-285
MarqueRS PRO
87,51 €
Each
Unité
Straight 13.75 → 15.25mm 150 mm HSS
N° de stock RS 394-267
MarqueRS PRO
65,19 €
Each
Unité
Straight 10 → 10.75mm 125 mm HSS
N° de stock RS 188-2477
MarqueRS PRO
96,22 €
1 Set
jeu(x)
Straight 14 mm, 18 mm, 22 mm 105 mm HSS
N° de stock RS 188-2501
MarqueRS PRO
41,40 €
Each
Unité
Morse Taper 10mm 127 mm HSS
N° de stock RS 188-2503
MarqueRS PRO
48,27 €
Each
Unité
Morse Taper 14mm 152 mm HSS
N° de stock RS 394-245
MarqueRS PRO
62,04 €
Each
Unité
Straight 7.75 → 8.5mm 100 mm HSS
N° de stock RS 394-239
MarqueRS PRO
141,70 €
Each
Unité
Straight 21 → 23mm 85.72 mm HSS
N° de stock RS 188-2508
MarqueRS PRO
45,46 €
Each
Unité
Morse Taper 1/2in 5-15/16 in HSS
N° de stock RS 188-2505
MarqueRS PRO
69,64 €
Each
Unité
Morse Taper 22mm 184 mm HSS
N° de stock RS 188-2506
MarqueRS PRO
75,10 €
Each
Unité
Morse Taper 26mm 184 mm HSS
N° de stock RS 394-291
MarqueRS PRO
95,72 €
Each
Unité
Straight 17 → 19mm 170 mm HSS
N° de stock RS 188-2507
MarqueRS PRO
41,40 €
Each
Unité
Morse Taper 3/8in 127 mm HSS
N° de stock RS 394-241
MarqueRS PRO
64,91 €
Each
Unité
Straight 8.5 → 9.25mm 105 mm HSS
N° de stock RS 188-2502
MarqueRS PRO
45,46 €
Each
Unité
Morse Taper 12mm 152 mm HSS
N° de stock RS 394-263
MarqueRS PRO
53,40 €
Each
Unité
Straight 6.5 → 7mm 85 mm HSS
N° de stock RS 188-2504
MarqueRS PRO
56,28 €
Each
Unité
Morse Taper 16mm 167 mm HSS
N° de stock RS 394-289
MarqueRS PRO
80,53 €
Each
Unité
Straight 12.75 → 13.75mm 145 mm HSS
N° de stock RS 394-295
MarqueRS PRO
89,96 €
Each
Unité
Straight 15.25 → 17mm 165 mm HSS