An orthopaedic surgical instrument, comprising: a handle including (i) an elongated body extending from a distal end to a proximal end, the elongated body having a cavity defined therein, and (ii) a guide pin extending from the proximal end, a first lever extending outwardly from the cavity to a distal end, the first lever including a proximal end that is pivotally coupled to the elongated body within the cavity, a second lever including (i) a lever body extending outwardly from the cavity to a proximal end, the lever body having a distal end that is pivotally coupled to the elongated body within the cavity, and (ii) a catch extending from the proximal end of the lever body, and a leaf spring connecting the first lever to the second lever such that movement of the first lever causes movement of the second lever, in which the first lever is pivotal between (i) an unclamped position in which the distal end of the first lever is spaced a first distance from the elongated body and (ii) a clamped position in which distal end of the first lever is spaced a second distance from the elongated body that is less than the first distance, in which (i) when the first lever is in the unclamped position, the second lever is in a first position in which the catch is spaced a first distance from the guide pin and (ii) when the first lever is in the clamped position, the second lever is in a second position in which the catch is spaced a second distance from the guide pin that is less than the first distance, and in which the leaf spring is placed in tension when the first lever is in the clamped position to lock the second lever in the second position, characterised in that the first lever includes a first circular slot, the leaf spring includes a first circular tip that is received in the first circular slot, the first circular tip having a diameter that is larger than an opening defined in the first circular slot, the second lever includes a second circular slot, and the leaf spring includes a second circular tip that is received in the second circular slot, the second circular tip having a diameter that is larger than an opening defined in the second circular slot. a handle including (i) an elongated body extending from a distal end to a proximal end, the elongated body having a cavity defined therein, and (ii) a guide pin extending from the proximal end, a first lever extending outwardly from the cavity to a distal end, the first lever including a proximal end that is pivotally coupled to the elongated body within the cavity, a second lever including (i) a lever body extending outwardly from the cavity to a proximal end, the lever body having a distal end that is pivotally coupled to the elongated body within the cavity, and (ii) a catch extending from the proximal end of the lever body, and a leaf spring connecting the first lever to the second lever such that movement of the first lever causes movement of the second lever, in which the first lever is pivotal between (i) an unclamped position in which the distal end of the first lever is spaced a first distance from the elongated body and (ii) a clamped position in which distal end of the first lever is spaced a second distance from the elongated body that is less than the first distance, in which (i) when the first lever is in the unclamped position, the second lever is in a first position in which the catch is spaced a first distance from the guide pin and (ii) when the first lever is in the clamped position, the second lever is in a second position in which the catch is spaced a second distance from the guide pin that is less than the first distance, and in which the leaf spring is placed in tension when the first lever is in the clamped position to lock the second lever in the second position, characterised in that the first lever includes a first circular slot, the leaf spring includes a first circular tip that is received in the first circular slot, the first circular tip having a diameter that is larger than an opening defined in the first circular slot, the second lever includes a second circular slot, and the leaf spring includes a second circular tip that is received in the second circular slot, the second circular tip having a diameter that is larger than an opening defined in the second circular slot.