RST BLANK CHUBB L.SAFE 425X7G - Dr Lock Shop
- Brand: RST
- Product Code: R425X7
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Local StockOut of Stock1–3 daysNational StockOut of Stock1 weekOut of Stock
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$32.13
- Ex Tax: $29.21
RST BLANK CHUBB L.SAFE 425X7G
Product Overview
RST BLANK CHUBB L.SAFE 425X7G is a high-quality replacement key blank designed for Chubb lever safes. This key blank features a 135 mm stem length and a 7G gauge, ensuring compatibility with a range of traditional pin tumbler locks. The key is single bitted and does not include a collar, making it suitable for precise locksmithing applications.
Key Features
- Stem length: 135 mm
- Flag dimensions: 20 mm (W) x 18 mm (H)
- Gauge: 7G
- Single bitted design
- Pin type key
- No collar
Technical Specifications
| Specification | Value |
| Stem length | 135 mm |
| Flag size | 20 mm W x 18 mm H |
| Gauge | 7G |
| Brand | Rst |
| Bit length (along the stem) | 20 mm |
| Bit width (away from the stem) | 18 mm |
| Has a collar | No |
| Pin or pipe | Pin |
| Pre-cut key | No |
| Single or double bitted | Single bitted |
| Stem diameter | 4.47 mm |
RST stem lengths are measured from the bottom of the key head to the very end of the stem.
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.
Tags: RST BLANK CHUBB L.SAFE 425X7G, R425X7, Old Key Blanks
