RST BLANK CABINET 78x5 1/2G - Dr Lock Shop
- Brand: RST
- Product Code: R78X512
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Local StockOut of Stock1–3 daysNational StockIn Stock (90)1 week
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$17.79
- Ex Tax: $16.17
RST BLANK CABINET 78x5 1/2G
Product Overview
The RST BLANK CABINET 78x5 1/2G is a high-quality RST pin cabinet blank designed for locksmiths and key cutters. It features a 41 mm stem length and a 5 1/2G gauge, making it suitable for a variety of traditional pin keys. The flag measures 13 mm wide by 11 mm high. Stem lengths are measured from the bottom of the key head to the end of the stem. Available exclusively through Dr Lock Shop, this product ensures precision and reliability for your key cutting needs.
Key Features
- Stem length: 41 mm
- Flag dimensions: 13 mm (W) x 11 mm (H)
- Gauge: 5 1/2G
- Single bitted pin key
- No collar
Technical Specifications
| Brand | Rst |
| Bit Length in mm (Along The Stem) | 13 |
| Bit Width in mm (Away From The Stem) | 11 |
| Has a Collar | No |
| Pin or Pipe | Pin |
| Pre-cut Key | No |
| Single or Double Bitted | Single Bitted |
| Stem Diameter in mm | 5.13 |
| Stem Length in mm | 41 |
Key Gauge to Imperial / Metric Conversion
Use this key gauge conversion table from Dr Lock Shop to identify the correct gauge for old pin keys, pipe keys, safe keys, and other traditional keys. Measure the diameter of the key shaft and compare it with the imperial or metric measurements below.
| Key Gauge | Inches (Decimal) | Millimetres (mm) |
| 1 | 0.300" | 7.60 mm |
| 2 | 0.276" | 7.01 mm |
| 2½ | 0.264" | 6.71 mm |
| 3 | 0.252" | 6.40 mm |
| 3½ | 0.242" | 6.15 mm |
| 4 | 0.232" | 5.89 mm |
| 4½ | 0.222" | 5.64 mm |
| 5 | 0.212" | 5.38 mm |
| 5½ | 0.202" | 5.13 mm |
| 6 | 0.192" | 4.88 mm |
| 6½ | 0.184" | 4.67 mm |
| 7 | 0.176" | 4.47 mm |
| 7½ | 0.168" | 4.27 mm |
| 8 | 0.160" | 4.06 mm |
| 9 | 0.144" | 3.66 mm |
| 10 | 0.128" | 3.25 mm |
| 11 | 0.116" | 2.95 mm |
| 12 | 0.102" | 2.62 mm |
Choosing the correct key gauge: Measure across the outside diameter of the round shaft. Match your measurement as closely as possible with the table above before ordering your replacement key from Dr Lock Shop.
Ideal Applications
This RST blank cabinet key is ideal for locksmiths and key cutters working with traditional pin keys. It is perfect for use in key cutting and key replacement tasks where precise gauge and stem length are critical. Available through Dr Lock Shop, it supports professional locksmithing with reliable and accurate key blanks.


