RS PRO Straight Shank Reamer Bit, 21 mm Diameter, 180 mm Overall

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Subtotal (1 unit)*

$286.54

(exc. GST)

$315.19

(inc. GST)

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  • 9 unit(s) ready to ship from another location
  • Plus 5 unit(s) shipping from 12 February 2026
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1 - 4$286.54
5 +$235.81

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RS Stock No.:
394-302
Brand:
RS PRO
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Brand

RS PRO

Shank Type

Straight

Product Type

Reamer Bit

Diameter

21 mm

Overall Length

180mm

Cut Length

60mm

Number of Pieces

1

Number of Flutes

6

Material

HSS

Shank Size

11.2 mm

Standards/Approvals

No

RoHS Status: Exempt

RS PRO HSS 19 to 21 mm x Straight Shank Reamer Bit


Need to enlarge an existing hole? Choose this straight shank reamer bit from RS PRO. It allows you to smooth the sides of holes to ensure they're the appropriate size and finish to accommodate a fastener or similar component.

The reamer bit's high-speed steel (HSS) construction provides excellent heat resistance and durability. The six hardened steel blades sit in tapered keyways and expand as you adjust and reposition them along the bit's body. You can use screwed end caps to fix the blades securely in the required position.

The blade material's Hardness Rockwell C rating of HRC 62-66 means it's highly durable and offers long-lasting performance. This type of reamer bit is commonly used in applications where a high degree of precision is necessary to finish existing holes to the exact size.

Features and Benefits


  • Diameter of 19 to 21 mm

  • HSS (high-speed steel) material

  • Overall length of 180 mm

  • Straight shank type

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